Edmunds Answers questions

1995 GMC Sierra 2500 6.5L turbo diesel 200,000 km. Starts easily from cold but refuses to restart when hot.

nield — Sun, 03 Aug 2008 12:59:59 GMT

Truck starts well from cold but now I dare not stop the engine once I am running and the engine is hot. It will not restart. The batteries evenually die. If I recharge the batteries and let the engine go cold it will restart easily. Both fuel pumps and starter motor were changed about 15,000km ago. The air and fuel filters are new. The injectors are OK according to my mechanic. Both batteries and alternator were replaces in the last year. When we crank over the HOT engine there is fuel at the filter. I don't know if there is fuel at the injectors. There is no grey smoke from the exhaust when we crank the hot engine. We bought the truck 4 years ago. We found it always acted up in summer but up till now "three cranks" would restart a hot engine. Now this summer it just cranks away until the batteries are flat.

1999 GMC Sierra 2500 surging while in reverse?

budman15 — Mon, 29 Dec 2008 23:07:04 GMT

why does my 1999 gmc sierra 2500 surge when in reverse?

Does anyone know much about Chevrolet Diesel trucks around 1995? I may buy one but want to know more about it.

yotaguy — Thu, 15 May 2008 20:46:36 GMT

Reliability? Trans? Expensive to repair? Gas mileage? It has had a lot of upgrades put in to it about $12,000 total with a rebuilt engine, trans with shift kit, new and bigger colling system, phaser 2, #8 turbo?, Gear drive, and Bosch injectors. Good or bad? You tell me. Thanks

Rough shift after using overdrive going over 60 mph. GMC Sierra 2500 4 X 4 gas. Why?

grattray — Tue, 07 Oct 2008 18:55:25 GMT

Hi there,

I've got a GMC year 2000 model 2500 p/up 4X4 gas engine.

When I go over 60 mph using OverDrive, then when I slow down and it goes back to 3rd gear, subsequently it will go back to O/D as I speed up. When it shift back up, it's a slam hard shift.

If I slow to a stop, then it's a super slam hard shift from first to 2nd, and then the remaining upshifts.

Now, if I pull over and turn the motor off for a couple of minutes, then turn back on and go, it's fine as long as I don't get up to 60 mph. AND, if I leave it in 3rd gear without going into O/D, it's allright and the problem doesn't come up.

So, it's only in O/D and above 60 mph....

What to do?

Thanks,

Gordon

2000 GMC Sierra 4x4 with 260KKm. When accelerating get buzzing like valve chatter from transmission at 80km/hr and 1700 rpm.

ontheflybri — Wed, 15 Apr 2009 23:46:45 GMT

GMC 2000 Sierra 4x4, 3/4 tn, 6 l with 260KKM. When I accelerate I get a buzzing from the transmission like valve chatter at 80 Km and about 1700 rpm. If I punch the gas and downshift the buzzing stops and I can accerate to higher speeds fine and then continue in overdrive at 110 km/hr. Occasionally this also happens at 100KM/hr and about 2000 RPM.

A transmission flush has not fixed the problem and Mr Goodwrench recommends transmission replacment. Help.

Why does my 2003 GMC Sierra 2500 have a display of Reduce Engine Speed, and I then lose control of the throttle?

sal40 — Sun, 18 Oct 2009 14:30:56 GMT

Why does my 2003 GMC Sierra 2500 have a display of Reduce engine speed, and I then lose control of the throttle? This has a code of 1516, and I have to turn the engine off, then restart in order to be able to continue driving. Does anyone know what could be causing this?

1999 Suburban 7.4L all sensors operating. what is the ignition timing at idle with a code reader set to "monitor'

chuckster57 — Tue, 05 Feb 2008 23:37:24 GMT

1999 Suburban 7.4L . Replaced head gaskets. installed dist. with # 1 at TDC and put rotor "button" at "8" mark. Hooked up autoxray code reader and at idle runs rough and says timimg is at 23-24 degreees. Seems way to advanced. Can't fnd anything that says what it should be. getting P1345DTC (crank/cam correlation out of range) all marks seem to be lined up.

99 7.4 Chevy 1500 first crank of the day runs fine. After that hard to start every time. Please help,

fio2 — Mon, 26 Jan 2009 14:36:06 GMT

start a runs fine but every start after that for the rest of that day are hard starts. checked throttle body, iacv ,looked at the egr didn't look bad and replaced the pcv. It seems to be fuel related I am about to pull my hair out.

2003 GMC with Duramax started then went dead and would not crank back up.

unionman1 — Sat, 13 Jun 2009 16:03:02 GMT

I have a 2003 GMC with the 6.6 Duramax. Yesterday I started it up before work and walked in the house. On my way back to the truck it just died. It would not start back up. That afternoon I tried again and still no luck. I sprayed starting fluid in the air cleaner and it cranked up and ran fine. After shutting it down it was hard to get it started again (with no spray). I don't know if it's losing pressure through an air leak or it's the fuel pump. Anybody have an ideas?

Oil weight for Silverado

rreid2 — Fri, 01 Feb 2008 20:16:47 GMT

1. Even though it calls for 5W30 GM dealerships are using 10W30, is it because of the climate. We live in west texas. I have 10W30 in all my vehicles because I heard of a recall on the Castrol GTX 5W30 oil. And I prefer Castrol GTX. I called GM and they know nothing of the recall. And now I'm in the process of changing out all the vehicles to 5W30 again. Since you answered my question.

I'm confused about weights of oil, what is the difference between 5W30 and 10W30?

rreid2 — Fri, 01 Feb 2008 21:14:14 GMT

I had a 99 Silverado with a 6liter and put 10W30 in it according to the temperatures in the owners manual. Wouldn't it be the same on my 2007 8.1liter GMC Sierra? My 6liter had 190,000 miles on it and never burned oil.

Help with speedometer reading 20 mph to slow on 92 GMC 2500 2 wheel drive

tommytee — Thu, 24 Jan 2008 12:19:57 GMT

My 1992 GMC speedometer reads 20mph to slow. When I drive 65mph being clocked by my wifes car my truck speedometer reads 85mph. The temperature gauge also reads low. I have replaced my temp. sensor with no changes noted.

Can anyone tell me if it would be a problem with my instrument cluster or something else?

Does anyone have a wiring diagram? Do I have to take the truck to a dealer to find the problem?

Thanks

1996 Chevy 6.5 Duramx starts and runs 30 sec and dies. Purging water from fuel filter did not help. I need help.

muleman100 — Thu, 31 Jan 2008 18:35:52 GMT

Suburban ran great up to today. It has 157,000 miles. Refueled and later it would not run but a short time Always starts and then dies. Wait a few minutes and it will start and die again.

hard to shift 2-3 why

rufusd — Fri, 08 Feb 2008 19:57:50 GMT

1999 2500 24v cummins 130,000mi,just bought, no history, when at first start up veh, shifts 1-2 good, when it shifts 2-3 motors almost red line before shift, 3-4 good shift. after 1st. shift through it seems to be ok. curise control operates but gains in speed. why any connections?..help

Trying to find out the horsepower of the 1996 7.4l GMC engine- mine is port injected but has distributer

wecomb — Sun, 17 Feb 2008 08:51:37 GMT

Same as above

97 Dodge 2500 cumins 4x4 auto trans does not want to shift into OD till 50 to 55 mph at times

bigreddodge — Sun, 17 Feb 2008 11:26:23 GMT

My trans started shifting abnormally (intermittently), not shifting into OD till 50-55 mph and shifting out of OD at about 50-55 mph.I took it to a trans shop and they said it needed rebuilt so I let them rebuild it.Its still doesn't shift like it should and its intermittent so it wont act up when I take it back for the shop to look at.these are my symptoms.

#1 the OD light stopped working,it used to flicker when it got real wet and rainy but now it dont come on at all, the switch still turns on and off the OD though (only the light doesn't work).

#2 at times trans wont shift into OD till 50-55 mph and wont stay in OD below 50-55 mph. (seems to be more common with heavy acceleration)this is intermittent and doesn't do it all the time.sometimes the trans works fine.

#3 sometimes when you start from a dead stop it feels like its not in the lowest gear.(feels like your pulling a big trailer up a hill) then you will feel it shift to a lower gear and it seems ok.

#4 sometimes trans seems to be slipping from a dead stop and then it locks up. the rpm may go up to 1000 to 2000 rpm and then it locks up.(I notice this the most when I'm just starting the truck to go somewhere)

What's difference in towing capacities Chev 5.7 vortec K2500 vs newer 6.0?

dulrich — Mon, 18 Feb 2008 12:36:34 GMT

Trying to determine if a 1999 K2500 w/5.7vortec is sufficent enough to tow my horse trailer or do I need to go to the newer 6.0?

I ran out of diesel in my 5.9L Cummins Turbo. What do I need to know to get it running again. Thanks very much!

wyms — Sun, 24 Feb 2008 01:31:51 GMT

I have a 2001 Dodge Ram, with a 5.9L Cummins Turbo Diesel manual shift.

'02 Chevy Silverado 4x4 Encoder Motor Change

crash1963 — Sat, 15 Mar 2008 19:03:08 GMT

Hi... anyone know how to install an NP8 encoder motor? The cam on the transfer case is nearly, but not quite lined up for installation. I've heard not to turn the motor electrically while it's off of the truck, so somehow I have to turn the cam on the transfer case. I put the truck in neutral off of the ground but this cam won't move much.. .feels mushy. Am I doing something wrong? I just need to move it a little bit.. :) Thanks!!

Problems with front seat in a 2005 Dodge Ram 2500

gamyersinc — Tue, 18 Mar 2008 15:45:24 GMT

Front seat of vehicle is very uncomfortable

I have a 2005 GMC 2500HD 8.1 6 speed manual. There is a rattle coming from the base of the shifter? Dealer can't fix.

fiberguy — Mon, 31 Mar 2008 14:19:32 GMT

This rattle only seems to be when under load or acceleration, does it in all gears. My Dealer can not tell me if this is Normal or not as they do not see many of these transmissions. This rattle started around 20,000 miles, I now have 32,000 and it has not got any worse. Can anyone tell me if this is normal with these transmissions?

Thanks

'04 Chevy Silverado. What will cause all the dash lights to slowly dim out and finally turn off and not turn back on?

jkhm — Mon, 26 May 2008 12:03:01 GMT

when driving, all the dash panel lights started to dim and get dimmer. Finally turned off and no longer have any power. Also, the radio went dead.

Why would the exhaust manifold crack on a 2004 Dodge Ram 2500 with 62,000 miles?

jszot — Tue, 05 Aug 2008 21:27:52 GMT

I have been hearing what sounded like an exhaust leak. Now the engine light is on and truck is running rough. My mechanic says I have a cracked exhaust manifold. How common is this on Dodge rams? Don't think this should have happened with only 62,000 mi on truck. Truck has had regular manitenance. Oil changed every 3500 mi. Dodge has already replaced the front end. I have had to replace the steering box. Lots of expensive problems.

New Dodge Ram 6.7L diesel bio fuel compatibility?

net_rider — Wed, 06 Aug 2008 05:35:08 GMT

What does it mean exactly, i keep reading that it is ready for BIO DIESEL. Is this an option, or is it standard on that engine? i know Ford offers it in option, a 2000$ module option that is. does anybody know about this.

tks

I just rebuilt my 46re tranny. Now I have no reverse. Everything is foward even neutral. How do I fix this please? Dodge 2500.

stanton98 — Thu, 25 Sep 2008 09:21:15 GMT

The transmision is in a 1998 2500 dodge with a diesel. I didn't do anything with the valve body. just took it off then put it back on. when i rebuilt the tranny the clutches were very badly worn and they had been slipping. Everything went together very nice, i thought. When i put the truck in reverse it acts like it wants to but nothing. From Neutral on the truck goes foward.

2004 Dodge Ram 2500 transmission problems

mpshay — Fri, 10 Oct 2008 00:16:53 GMT

When the truck is cold it works fine, once the truck has warmed up (15-20min) it starts showing problems. When I put it into reverse to back out of wherever then put it back into drive, the transmission doesn't want to shift into second, sometimes i can get it to shift if i rev the engine up enough, then i have to do it all over again to get it to shift into 3rd gear. If i stop the truck and shift it into park then back into drive it will work fine like nothing was ever wrong, that is until i have to shift into reverse again. Once the truck cools down it works fine. Any ideas?

2004 Dodge Ram 2500 transmission problem. Can anyone answer this question?

mpshay — Mon, 27 Oct 2008 10:41:15 GMT

2004 Dodge Ram 2500 transmission problem

When the truck is cold it works fine, once the truck has warmed up (15-20min) it starts showing problems. When I put it into reverse to back out of wherever then put it back into drive, the transmission doesn't want to shift into second, sometimes i can get it to shift if i rev the engine up enough, then i have to do it all over again to get it to shift into 3rd gear. If i stop the truck and shift it into park then back into drive it will work fine like nothing was ever wrong, that is until i have to shift into reverse again. Once the truck cools down it works fine. Any ideas?

2004 Dodge Ram 2500 transmission problem.

mpshay — Thu, 30 Oct 2008 01:32:30 GMT

2005 Dodge Ram 2500 voltage?

mattylaw21 — Mon, 24 Nov 2008 17:00:26 GMT

2005 Dodge Ram 2500 with a 5.7 HEMI, Is the charging voltage normal if it is 15.2 volts? Any suggestions would be great, thank you

96 Dodge 2500 Cummins diesel turbo transmission rebuild diagrams and info needed.

HighlandAuto — Wed, 26 Nov 2008 15:13:12 GMT

Looking for the rebuild info and pics for a 98 Dodge Cummins diesel turbo.
Does anyone have a link to a site that can help me rebuild the 46 RE tranee?
I am desperate and dont want to spend almost $3000 to rebuild it.
I already have the master rebuild kit and the transmission out of the truck.
I have it for the most part, torn apart.
Please help !!!!!!!!!!!!!!

1994 Dodge Ram 2500. After the engine gets to temp it sputters and dies.

motohead — Thu, 04 Dec 2008 00:30:09 GMT

I recently purchased a 1994 dodge 2500 it has 206 K, it drove fine during the test drive, on the way home it started to hesitate sputter and then just died. I thought at first it was the IAC controller or the TPS sensor. I replaced both and it is still doing it. It seems like the temp sensor is shutting down the car when it gets to temp. any ideas before I take it to the shop and pay through my teeth.

Is the torque converter in 99 v10 Dodge Ram Pickup 2500 the same as in a 97 Cummins Dodge?

12v10 — Thu, 04 Dec 2008 22:28:32 GMT

I have a good t/c from a v10 truck and want to use on the trans in the 12v cummins truck. can anyone tell me if they are the same?

2004 Chevy Silverado 2500 The door lock interior switch or fob will not always unlock the rear doors. Works intermittently.

FloridaRon — Thu, 11 Dec 2008 12:09:24 GMT

I have a 2004 Chevy Silverado 2500 HD. The door locks interior or fob will not always unlock the rear doors. They work intermittently from the fob or if you push the interior door lock button. Drivers side or passenger, fob #1 or #2 they all work just some of the time. And it is both rear doors not just one that do not unlock. Dealer says it needs re-programing ??? Thanks for the help... i hope.

2002 Dodge 2500 won't stay in lock up torque converter no matter if it's in OD or not. Replaced the GPS in the tranny.

git_r_done02 — Wed, 31 Dec 2008 00:16:18 GMT

Hi i got a 2002 dodge ram 4x4 with just 160k on it. it will not stay in lock up torque converter when driving between 45 and 55 with OD engaged and it does the same thing with OD not engaged but around 35 or 40. we talked to some local tranny guys and they said replace the govoner pressure solenoid and other electronics right by the vavle body when you take the pan off. we also replaced the wiring harness that connects all this, put new fluid in, new filter. let her warm up and drove her and still the same thing. could it be the torque converter or a bad valve body? someone help please

I have an 03 Dodge Ram 2500 with 5.7. I have a P0132 code. I changed my 02 sensor. Did not help. Is the problem my catalytic converter?

schro — Thu, 01 Jan 2009 13:26:16 GMT

I have an 03 ram 2500 with a 5.7 I am getting a P0132 code and it is running erratic. I changed the upstream sensor and still get the code and still runs erratic. could the problem be my cat converter

I own a 2001 Chevy Silverado 2500HD with 113,000 miles. Last transfer case fluid change was 30,000 miles. It's now totally dry, but seems ok.

bubba40 — Thu, 01 Jan 2009 20:18:43 GMT

what type of damage should i expect,not sure how long its been totally dry,haven't driven it in 4 wheel drive much,according to the service manual its capacity is 2 quarts of type 3 dexron,there wasn't any noticeable noise or leaks and it still performs well in 4 wheel drive,should i hope for the best?

98 Dodge Ram 2500 w/ Cummins and 5 speed manual transmission makes squishing noise when starting out in cold weather.

silverado65 — Thu, 08 Jan 2009 10:33:20 GMT

When starting out in cold weather, there is a very noticeable squishing noise coming from the transmission. It sounds to me like the oil is squishing out between the gears. It only does it when starting out. Once you are above about 10 mph the noise goes away. Then when you stop at a light it does the same thing again. The truck has 167700 miles on it. Once it is driven a few miles the noise goes away. The trans fluid was changed with no change in the noise. I have also noticed that it is a little harder to shift from neutral to 1st gear than it used to be. If the temperature is warm outside, it makes no noise at all. This is a recent problem, even though the weather has been cooler in Northern Nevada for some time.

Dodge Ram 2500 v-10 runs awful. Can take all right side plug wires off and it doesn't change performance.

mrmooch23 — Mon, 19 Jan 2009 20:58:50 GMT

My 96 dodge ram 2500 v-10 started running poorly and only got worse, I have replaced the converter, plugs, crank sensor. I can take all 5 plug wires off the right bank and the performance don't change at all, wires are firing and fuel rail has good fuel pressure, the motor accelerates very slowly and pops through the intake periodically,, please help.

I have a 2001 Dodge Ram 2500. Are there any similarities with the 2000 model?

tater24 — Tue, 03 Feb 2009 17:36:02 GMT

exhaust,interior,body and drive train?

Is a 1994 Chevy 454 block the same as a 1979 454 block? Are the heads just different?

turkeyjac — Tue, 17 Feb 2009 20:43:30 GMT

are the blocks the same or do they differ from tbi and carb

I have a 96 Dodge 2500 V-10 and it sounds as if the front transmission bearing is whining. The tranny shifts fine.

tazwolf1 — Mon, 09 Mar 2009 09:58:09 GMT

the tranny was rebuilt 3 years ago. it runs great doesn't leak oil on the ground it shifts a little hard from 2 to third but not enough to bother me. Sort-of like a manual valve body or shift kit. the truck has a little over 200,000 miles. I'm a pretty fair wrench and it sounds like some of you here know what you're talking about, a rare thing nowadays. thanks

Fuel pump control circuit fault? Dodge Ram 2500.

idrvtrns — Tue, 17 Mar 2009 15:13:46 GMT

2004.5 ram 2500 CTD 325/600 HO----was merging into highway traffic at about 3/4 throttle and engine died. Pulled over and got it fired back up and drove it on home. No engine check lights or anything came up no the dash that would have indicated a problem. Ran fine all the way home(about 36 miles). Hooked a code reader up and got a fault code P0628 that indicated "fuel pump A control circuit low". Is this a fuel pick-up pump problem that I could fix myself, or perhaps something the dealer needs to look at? Any suggestions guys?

I have a 2000 Chevy Silverado 2500 and it won't come out of 4 high when driving but is in 2 wheel when I'm stuck?

coryaz — Fri, 27 Mar 2009 23:12:20 GMT

Like I said when I'm stuck my rear tires spin but my dash says I'm in four high. When driving on the highway it feels like I'm in four wheel drive and burns gas like being in 4 high. I try to shift into 2 wheel or 4 low and it keeps putting me in 4 hi. Any ideas on what this could be?

I have a 2000 Dodge 2500 diesel Cummins pickup. It has no power till you get to about 50 miles per hour.

ffisher — Wed, 08 Apr 2009 20:02:10 GMT

I bought truck about 3 months ago. It sat for almost a year with out any use. It has no power till it gets to about 50 miles per hour. Does have a little bluish white smoke.

My 98 Dodge Ram diesel continuously up and down shifts when trying to maintain a constant 40 to 50 mph.

raylux — Sat, 11 Apr 2009 22:51:26 GMT

I have had the transmission fluid changed. Also the sensor on the rear differential was changed because the speedometer was reading strangely.

Where do I locate the Dana numbers for a 1997 Dodge 2500?

sueellen1 — Thu, 23 Apr 2009 21:16:56 GMT

I have a 1997 Dodge 2500 4x4. I have to replace the lower ball joints but can not determine weather it has a dana 44 or dana 60 to buy the correct ball joints. Please help.

GMC catalytic converter heat shield rattle fix? 1995 GMC Vandura G2500.

lobosays — Mon, 04 May 2009 20:54:46 GMT

What is the FIX for a 1995 GMC Vandura G2500 5.7 TBI catalytic converter heat shield rattle?

Thank You.

How much oil does it take to refill the 5 speed automatic transmission in a 2005 Dodge 2500 after changing the filter?

farmboy71 — Fri, 05 Jun 2009 10:41:04 GMT

Just changed the filters in my 2005 Dodge 2500 with a 5 speed auto transmission. How much oil does it take to refill to the proper level?

What is the maximum tire size for a 2006 Dodge Ram 2500 4x4 without a lift kit?

nghtprwlr — Sun, 14 Jun 2009 12:49:40 GMT

I would like to go to a taller tire on my 2006 dodge ram 2500 4x4. The stock tires are 265/70/17. How big can I go without a lift kit?

My 2005 Dodge 2500 diesel dies when I am driving it and starts right back up. No engine warning lights come on.

rtyser — Sun, 14 Jun 2009 17:02:19 GMT

When I and driving my 2005 Dodge 2500 Diesel the engine will die and then start right back up. The speedometer, RPM's and engine temperature will all drop to "0" and then in about 2 seconds it starts right back up. This happens on both the highway and in town. No engine warning lights come on during this. Our local repair shop check the on board computer and they found a message that said "temporary loss of memory", but nothing else. This happened 20 times in 30 miles. Help!