Edmunds Answers questions

2002 gmc sonoma tcc solenoid replacement

rkendall — Sat, 05 Jan 2008 09:39:03 GMT

2002sonoma dosen go into overdrive when cold

I Have a 98 GMC Sonoma 2.2 5speed.I was wondering if a 98 GMC Sonoma with a 4.3 5speed have the same computer.

1gmcsonoma — Sat, 19 Jan 2008 21:10:58 GMT

Would a 98 GMC Sonoma or S-10 4.3 vortec 5Speed bolt and plug up to my computer in a 98 GMC Sonoma 2.2 4 cyl. 5speed?

will a 2000 gmc sonoma moter fit to a 1996 s10 and will the wiring harness work

bobgmc — Sun, 20 Jan 2008 23:34:04 GMT

Ok i need to take the motor out of a 2000 gmc sonoma i had wrecked the truck but the moter is fine ..well in the wreck i tore up the wiring harness i have a s10 i can drop the moter in i need to know if the s 10's brain and harness can fit on the gmc's moter they are both 4 cyl with manual trans

gmc sonoma problems

bobgmc — Mon, 21 Jan 2008 18:31:33 GMT

where is the 8 diget vin located on a 2000 gmc sonoma????????

GMC Sonoma 4 X 4 engagment problems?

santamour123 — Wed, 27 Feb 2008 13:29:40 GMT

4x4 slips in and out at times and does not engage at 40+mph

02 GMC Sonoma 4wd noise when slowing down at front. unplug elec plug on transfer case and noise quits. What is fix?

boduce — Thu, 28 Feb 2008 14:37:23 GMT

Heard vacuum leak and then when slowing down loud noise from right front side. Put in 4Hi and noise went away. Unplugged elec connection at transfer case and noise never came back. Had vacuum leak fixed and plugged in on transfer case. Drove 3000 miles without problem. Then noise came back. Unplugged elec connector at transfer case and noise is gone. What is problem and how do I fix. Transfer case has a cable running to it from under the battery tray and the elec plug.

Thanks for any help. Mike

I recently purchased a 2002 GMC Sonoma 4x4. It does not have original wheels and it rides terrible. Best solution?

anading — Thu, 27 Mar 2008 19:39:30 GMT

It currently has raptor riken tires-255/50zr17101w. I would like to have a good substitute to the original wheels and tires. What is the original size and is there a better upgrade?

Re: Amerilite 21MB towed with GMC Sonoma. Would tow 50 miles on flat country road & back 12 times per summer?

sunnyone1 — Sat, 17 May 2008 22:51:51 GMT

Sonoma 2001 has GU6 3.42 axle and 29,000 miles on it.
Gulf Stream Amerilite 21MB camper weighs 3,300 pounds and we would put no more than 300 pounds in it, likely less. We buy groceries when we get there and do not haul water. We camp at the same place all the time, one hour from home, 50 miles one way, and get there on 2 lane country roads with light traffic. Would it be crazy to buy this camper and think we could pull it with our Sonoma? Booklet says it can pull 6,000 pounds... but I just don't know; this is a small truck. We have no hitch now and would have to have one mounted to the truck. Dealer said we would not need a transmission cooler; is that true? All info, opinions and experiences appreciated. Thanks for any help.

1998 GMC Sonoma 4x4. I've suddenly got 3/8" of free play in the steering wheel; there was none before. Help?

pletz — Tue, 12 Aug 2008 21:57:33 GMT

The free play seemed to happen rather suddenly. Gripping the steering wheel shaft with slip joint pliers on the rubber sleeve seems to stop the play. Gripping the shaft above or below the rubber sleeve does not stop the play. There is movement in the shaft when pushed and pulled side to side but I can't tell if the loosness is just above the power steering box or where the shaft comes through the firewall. Where are the steering wheel shaft universal joints? Is there a common area where these wear out? Is there any chance this is not in the shaft but can be eliminated by adjusting the screw on the power steering box, if one exists?
Thanks

Where can I get a vacuum diagram for a 91 GMC Sonoma with the 4.3 ?

sick_sonoma91 — Sun, 19 Oct 2008 12:24:30 GMT

idling high figure vacuum could be the problem never had a sonoma just got it a few days ago any ideas throw them my way

On my 95 GMC Sonoma, I cannot get my parking brake lever to release when I pull on the handle. How can I get it to release?

therik63 — Thu, 08 Jan 2009 17:25:02 GMT

set brake for 5 minutes and then it wouldn't release when I pulled on lever

Need to know all the different rear axles that will fit under my '91 GMC Sonoma, without modification.

Stonesonoma — Wed, 14 Jan 2009 23:53:37 GMT

I have 3.73 gears and need better fuel economy. It has a 5.7 TBI, 700R4 with 4th being .7:1. I get 13mpg and this is my daily driver. Looking at 3.08 as a swap, just need reassurance this is the best course of action. One person suggested 2.73, but I can't find a housing with those in it. I don't have the knowledge to change the ring and pinion, nor the money to have it done. I can, however, change the whole rear axle. I was told camaro and Blazer/Jimmy/Bravada rear axles would fit. Any thoughts?

How do you change the front brake pads on a 91 GMC Sonoma?

barbara76 — Thu, 19 Feb 2009 10:21:34 GMT

91 GMC sonoma

Adjusting the valves. GMC 2.2 4 cylinder Sonoma pickup.

dogrocksee — Fri, 30 Oct 2009 20:01:52 GMT

Can you give me an idea of how I would go about adjusting the valves on this motor. Tighten until no chatter like on a V8? I would think that there would be spec's for this adjustment. intake being different from exhaust?

Thank you for your replies, I can only hope to be as courteous

Head saver shim required for a '99 GMC Sonoma?

dogrocksee — Sun, 08 Nov 2009 04:35:41 GMT

I have been working on a 1999 GMC 2.2 4 cylinder motor that I have taken the head off. I brought it to the machine shop to resurface and now need to know if I will have to use the head saver shim when replacing the head. This motor does not have the over head cam so I am thinking as long as the valve and piston have a clearance it shouldn't matter much.

What about the push rods/lifters/cam? Any suggestion on this would help!

i have a problem with my 93 Sonoma transmission. it will not go in 4 high or 4 low.the dash switch is good.

roger6969 — Mon, 25 Feb 2008 18:46:06 GMT

my dash light goes on for a second then goes off on the switch, i check all the fuses they are good what else can it be. i also don't have any dash lights either,i also have a vibration in the truck.i check the u-joints & hanger bearing is all good. do you have any answers.thanks roger!

GMC Sonoma; what makes the fuel pump operate and where is it located?

sassymom — Mon, 10 Mar 2008 14:44:51 GMT

on a 2000 gmc s15 sonoma

Have 98 GMC Sonoma, want to swap out 60/40 split bench for power buckets from a 2000

lostone — Sun, 23 Mar 2008 09:17:49 GMT

1998 gmc sonoma with no power options

Fuse problem GMC Sonoma

jimbo45 — Tue, 15 Apr 2008 12:13:59 GMT

1993 gmc sonoma: The fuse that powers the mirror adjustment, map light,glove box and dome light, melts everything I put one in. If I leave it, it drains the battery. The door panel switch wont turn off the dome light and map light.??

Where can I find a knock module for the pcm in 95 GMC Sonoma with a W vortec 4.3?

son_o_ma — Mon, 21 Apr 2008 13:36:38 GMT

I have replaced the PCM and switched the knock module chip in it. recently i have had it at 2 different repair places now it seems the pcm is bad again and the latest is that the chip is missing. the dealer says they cant locate it any more. any suggestions?

I have a 1995 GMC Sonoma and when I go over 60mph the check engine light comes on. Does anybody know why?

bigdog12 — Mon, 28 Apr 2008 14:07:27 GMT

the service engine light comes on when i go over 60mph does anyone know the reason for this?

1999 GMC Sonoma brake lights won't go out tried multifunction switch still on? Where is daytime running light module?

cathtdavid — Tue, 27 May 2008 19:59:52 GMT

1999 gmc sonma brake light won't go out tried multifunction switch still on. where is the daytime running lamp module and relay located? power to the lights all the time have to pull fuse to get them off

1991 GMC Sonoma with new fuel pump, relay and module yet no fuel to injectors. More details follow.

polander — Fri, 04 Jul 2008 10:30:27 GMT

The daughters 1991 GMC Sonoma with a 2.8L V-6 died on the side of the road and was towed home. A friend of hers put in a spare battery he had, checked the fuel pump relay, said it was bad, wiggled it and the truck started. She bought a new battery, put a few miles on the vehicle that night, next day a few more miles then another tow home. She bought a new relay which I replaced with no success. I heard no fuel pump noise and lowered the tank. Another "helper" showed up, I handed him a tester and he said I had voltage to the pump. So I replaced it. Hit the key and it wouldn't start. I listened for the fuel pump and heard no noise. I tested the old pumpto find it worked fine. Checked power to the tank with a Multi-meter to find 5 volts and that my helper didn't realize a dim bulb meant low voltage. I checked the wires from tank to hood, no breaks or fuse links. Pulled apart the multi-pin connector on the firewall to find it full of axle grease instead of dielectric grease. Cleaned with contact cleaner, re-assembled, hit the key,heard the fuel pump, nothing. Pulled the fuel filter, got a shower of gas, replaced filter (the old one clogged so badly it wouldn't pass air). Hit the switch, nothing. Checked voltage at tank and it was back to 5 volts. Removed and re-cleaned connector, still nothing. Put the charger on the new battery. Tested Ignition Module at the parts store. It was defective so I replaced it and still nothing. I've cleaned grounds and checked terminations (after I ran a wire from the battery to the disconnect on the fuel pump0. Still nothing. I probably fried the new fuel pump with all of the twisting and tugging. I know that was a lot to digest. Tomorrow evening I'll drop the tank again and try again. HELP ME PLEASE, My hair is gone! Thanks

Adjusting driver's side door on a GMC Sonoma.

csub80 — Mon, 25 Aug 2008 10:47:49 GMT

Driver side door on my GMC Sonoma is off alignment, I am looking for iformation on how to adjust it, or replace the hinges.

What weight oil is used for a GMC Sonoma?

sjkirsch — Thu, 25 Sep 2008 11:26:27 GMT

1996 gmc sonoma 2.2 liter

How do you check codes on a 03 GMC Sonoma 2.2L?

dsuydam — Sat, 04 Oct 2008 16:05:32 GMT

55,000 miles, had problems with a/c and r/r water pump

My dome lights on my 1998 GMC Sonoma do not work, Why is this?

hoopdizz — Thu, 16 Oct 2008 01:24:50 GMT

My dome lights on my 1998 sonoma do not work either the reading lamps or the overhead light. The fuse seems fine and has been tested anything else I can do? Also my light indicator for my 4 wheel drive does not show whether I am on 4 wheel or not anything as to why that is? Thanks!

GMC Sonoma radio won't play. When I turn it on, the clock changes to 1:00.

dannie22 — Thu, 23 Oct 2008 13:33:15 GMT

2001 GMC Sonoma

The CD player works fine, but the radio won't play, when I turn it on, the clock changes to 1:00.

This is the original combination CD player/ Radio. I don't even get any static... nothing.

2000 GMC Sonoma stuck in park.

calebandcarrie — Sun, 26 Oct 2008 02:01:20 GMT

truck cranks fine just wont shift from park.never had this problem before.automatic transmission.

Dashboard security light won't go out. GMC Sonoma

yeagerb — Tue, 28 Oct 2008 18:55:49 GMT

I have a 2000 GMC Sonoma truck with a 4 cylinder engine with 35000 miles on it which i bought new. The security light lit up in the dash about 2 years ago. The truck has no security system that i know of and never has had one. The light stays on the whole time that the key is on. I have checked every thing on the truck and nothing is wrong with and it runs as good as when it was new. My mechanic says not to worry about it and that it must be a glitch in the computor but it glares in my face and is driving me nuts. Does anyone out there know an easy way to get this light to go out without costing a fortune.

I need to replace or fix the heater core in my 94 GMC Sonoma.

carla10 — Mon, 24 Nov 2008 23:55:52 GMT

Got glove box off, but having trouble removing the liner

92 GMC Sonoma with frozen ignition in "on" position. Can't get key out. Help!

samiam3031 — Mon, 12 Jan 2009 09:09:40 GMT

Tried to turn off truck & ignition wouldn't turn back into "off" position. We had to disconnect battery to turn off truck. Now we cannot get the key out & ignition is still in "on" position.

1998 GMC Sonoma engine light on. Says 4th cylinder misfiring. What can it be or what can cause it? Please help!

juciy — Sat, 28 Feb 2009 10:03:58 GMT

have tried replacing pugs, wires..ect all the cheap stuff. sounds like a volkswagon.

2 weeks ago my GMC Sonoma caught fire while filling the oil. 5 days ago a BAD knock began, no power. Is it repairable? Still runs

babyjan — Thu, 12 Mar 2009 15:13:13 GMT

2001 GMC Sonoma Auto 4 cyl.,Has oil leak, was minor, recently became severe. When I check oil it looks black and chalky.

03 GMC Sonoma. The headlights work in the daytime but the passenger side headlight does not work at night.

jhardy3333 — Wed, 22 Apr 2009 08:26:01 GMT

03 Sonoma. The headlights work in the day time but the passenger side headlight does not work at night with the rest of the lights.

What are the symptoms of a bad fuel pump for a 2002 GMC Sonoma 4.3 liters?

frustrated27 — Thu, 21 May 2009 21:54:45 GMT

How do you know when your fuel pump needs to be replaced?

How do I change the oil filter lines on 2003 GMC Sonoma?

hatman4454 — Fri, 05 Jun 2009 22:50:27 GMT

I have a leak above the filter access door.

Please help with 2002 GMC Sonoma's automatic transmission. No reverse?

arizona_texan — Mon, 08 Jun 2009 19:39:52 GMT

Our Automatic 2002 GMC Sonoma's reverse stopped today! We barely drive it and went to take it in for emissions. We stopped for gas and then when we started to go the first gear sounded crazy so we pulled over (crazy=loud boom then whine like a turning sound). Then suddenly the reverse does nothing!

The truck is just 2,000 miles shy of 100,000 miles. We have never changed the transmission fluid. It isn't the right color but doesn't smell burnt - it looks CLEAR? 1st, 2nd and 3rd works - 1st acting funny when it slows way down like stopping at a stop sign. It is in our garage and can not go into reverse.

We bought some transmission cleaner fluid and some 1 qt of fluid just to see and well it sounds better still NOTHING when in reverse.

Real rough noise from my 02 GMC Sonoma. Racking and clanging from a dead start in first. Automatic transmission.

dsm2009 — Sat, 13 Jun 2009 20:57:17 GMT

As it shifts it quiets down, shifts correctly and runs fine.

The oil pressure gauge is fluctuating wildly and the first gear noise increases when the gauge reads 20 but as the pressure rises to about 60 things operates fine. The oil gauge stays around 60 running and drops as i slow to a stop.

I've tried this running hot and running cold / the same.

Is this something i should have a mechanic look at?

I've checked my fluid levels and everything seems ship shape.

I'm trying very hard to stay out of the mechanics garage.

I need the connection scheme of spark plug wires to the distributor on a 1996 GMC Sonoma, 2.2L 4 cylinder engine.

scotmick — Tue, 23 Jun 2009 17:44:52 GMT

I just bought a 1996 GMC Sonoma with the Spark Plug wires messed up. I need the firing order and wiring diagram to connect the spark Plugs to the correct distributor locations to get this truck running again.

1999 GMC Sonoma rebuilt engine. Oil pressure not right. Shows 80 while running, 40 when off.

bigbill55 — Sun, 16 Aug 2009 22:15:18 GMT

Put all new parts in engine, new oil pump and primed, runs great.

Haven't driven yet because of oil pressure. Could just be a ground problem or bad oil sending/pressure unit?

thanks

Can you put a '96 GMC Sonoma bed on a '93 body?

stephymay — Mon, 07 Sep 2009 18:02:48 GMT

Will a '96 sonoma bed fit on a '93 body, if not what would have to be done to make it if? if it does fit, will fenders ect? thanks for your help..

What year transmission will fit my 95 GMC Sonoma 2.2, 5 speed?

son9th — Wed, 09 Sep 2009 20:55:25 GMT

I need to find a 5 speed transmission for my 94 Sonoma 2.2. What others will fit?

I have an 01 GMC Sonoma with a 2.2. Can't find engine and wish to convert to 4.3. What all needs to be changed or modified?

fixtruck — Thu, 17 Sep 2009 18:21:18 GMT

My 01 Sonoma,-2.2 is now an anchor, I can't find a year compatible 2.2 locally, however there are a multitude of 4.3's how painful is the swap? Are the transmissions compatible and what about electronics? Can someone send me a list of all parts I need to change?

95 GMC Sonoma 4x4 4.3 liter. Looking for any possible other transfer case and transmission swaps I can do on this truck?

pelletier26 — Sat, 03 Oct 2009 17:07:21 GMT

I have a 95 Sonoma 4.3 liter 4x4. I am looking for another transfer case and transmission swap that I can do. I cannot find this one 3550 transmission that I need for this truck. What other transfer case and transmission sets can I use that will be easier for me to find and buy? This is a 5 speed by the way.

4x4 actuator keeps "blowing" out on my 2000 GMC Sonoma.

jtv1 — Mon, 05 Oct 2009 14:02:54 GMT

I have a 2000 GMC Sonoma that the actuator (under the battery tray) keeps blowing out, the rubber bellows rips or separates from the body. It has been replaced 5 times this year. I just replaced it again. Help, winter is coming.

Are there any parts recalls on a 2002 GMC Sonoma?

flett67 — Sat, 10 Oct 2009 00:38:47 GMT

Are there any recalls on parts for a 2002 GMC Sonoma sending unit, fuel pump, locks, etc.

I have a GMC Sonoma and it feels like the rear end is trying to catch up to the truck on the highway.

kdesrochers — Fri, 23 Oct 2009 15:58:48 GMT

We have changed the hanger bracket but we still have the problem.

'96 GMC Sonoma, no fire to fuel pump.

bjmck56 — Sat, 31 Oct 2009 21:59:37 GMT

After replacing the fuel pump and relay switch, fuse #9 and #10 are not blown, still no fire to fuel pump!

Does anyone know if there is a reset switch somewhere that nobody else knows about?

I took the bed off to get to the pump, and I was told that the bed had to put back on before the pump would work!
Please can anyone help on this!

I have checked everywhere that I know to check!
Thanks, B.J.

Had a vacuum leak on my 2000 GMC Sonoma 4 cylinder. How do I reset the check engine light?

gratliff — Mon, 02 Nov 2009 15:52:27 GMT

On my 2000 GMC Sonoma 4 cylinder, some vacuum hoses dry rotted. It caused the check engine light to come on. I replaced the bad hoses, how do I reset the check engine light?