Edmunds Answers questions

High compression engine

nitpicky — Thu, 27 Dec 2007 12:40:11 GMT

What exactly a "high-compression" automobile engine and why would I want one?

Check eng light remains on in my 2000 insight after replacing o2 sensor that code said was bad. Any suggestions?

medic6955 — Sat, 19 Jan 2008 14:40:18 GMT

I have a 2000 Honda Insight that the check eng light came on. right after this happened, Honda sent notice of recall to replace ECM because it could misinterpret signals sent and report bad sensors that were not bad. after Honda replaced the ECM, they said that it still has some sensor bad and they want 100 dollars to diagnose the problem. Had code read at Autozone and their scanner said faulty heated o2 sensor, bank 1 sensor 1. That sensor is a NTK L2H2. Bought new sensor that auto store said was for my car. 5 wire Bosch. replaced sensor, disconnected batt for 20 min then started car up. light was out for 25-30 seconds then came back on. What now?

My 2004 Buick Rendezvous has the service engine light on. What does that mean?

sukses01 — Sat, 26 Jan 2008 17:04:02 GMT

I just noticed that the light is on. I just had the air filter housing replaced because my friend broke it when he was trying to replace the filter. I have no idea why the light is on. Please help.

2000 honda odessy-check engine light constantly on.any help.

bics51 — Sun, 27 Jan 2008 12:05:14 GMT

had it checked 3/4 times over past six months aft mechanic fixed whatever computer said was wrong -light keept coming on.er

1999 Sierra extended cab pickup/5.3 V8. The service engine light always comes on. Changed gas cap, what's next?

ctroutt — Thu, 31 Jan 2008 14:57:14 GMT

The vehicle has a little over 65,000 miles, and along with the "service engine light" coming on, it appears that the transmission might be slipping (along with a 'clunking' sound) during a quick acceleration, and it sounds like the power steering might be going out also. I've read others having these same problems. Are there any recalls for this vehicle? What can I do in reference to the "service engine" light coming on? I've already changed the gas cap, which worked before.

service engine soon light on for 6 months car running fine what is problem

dbratko — Thu, 07 Feb 2008 20:53:35 GMT

1997 lumina service engine soon light came on 6 months ago car is running fine what is this light on for

What computer governs the check engine light

bestbeadworker — Sun, 10 Feb 2008 20:45:13 GMT

My car won't pass smog. I was told that the computer needed to be changed and I was quoted a $1000.00 to repair. I don't have that can of money so I need to the do the repair myself.

bbdw

what do codes p0171 and p0174 mean?

szab4 — Thu, 06 Mar 2008 09:56:14 GMT

check engine light is on codes p0171 and p0174 come up what do they mean and what do i need to do to fix them

I have a code PO128, check engine light won't go away.

1mortician — Sun, 11 May 2008 10:56:01 GMT

Driving the other day, in a normal weather condition, I had a check engine light come on. I took the car to Autozone to get the code pulled, it was a PO128 either, Low Coolant, Thermostat, or Sensor. I have replaced the Thermostat, drove still light on. Replaced the Sensor, drove, still light on. I tried to reset it by unhooking the battery, still the light is on. I am very frustrated as everything is replaced, everything should be fine.
Why is this light still on? How do I make it go away. My tempature gauge is reading fine. Thoughts? Thank you!

How do I check the computer to find out why a check engine light is on?

arhine — Mon, 12 May 2008 15:47:01 GMT

I changed the valve cover gasket, air filter, oil and oil filter and the plugs and wires, but the check engine light came on after the gasket and air filter were replaced. I tried to reset the computer by disconnecting the battery, but no luck in getting the light to stay off. It only comes on after driving the car for approx. 10 minutes.

CEL indicates knock sensor problem. Replace sensor or could it be something else?

rupertle — Sun, 08 Jun 2008 23:26:30 GMT

Also hesitates on acceleration. Any connection?

Have code po 1162. Any help?

torbett — Sat, 14 Jun 2008 21:02:46 GMT

says it is air fule metering malfuction have replaced oxygen sensors

Trying to figure out PO301 code.

wade11 — Sat, 12 Jul 2008 19:25:44 GMT

I got the car not running. Ended up being the broken timing chain. Engine starts, rough idle. Smoothes out about 1500 rpm, starts to miss at 4000 rpm and can't rev any higher. I had the coil pack/ ignition module checked at Autozone. New plugs, wires, throttle position sensor, cyl. 1 fuel injector, fuel filter. Found a sheet in the glove box from another code reading. It was random misfire, PO300. Not sure when this was read. Any help out there? Oh yea, the MIL is flashing.

Check engine light on! Code P0420?

michelfl — Wed, 30 Jul 2008 21:08:39 GMT

what does the code p0420 mean

Service engine light goes on and off.

twhitener — Fri, 19 Sep 2008 17:06:39 GMT

my service engine comes on for a little then goes out after a short while. what could be causing that to happen?

Check engine light on after fixing radiator and thermostat.

aveo1 — Sat, 18 Oct 2008 19:41:08 GMT

I just got my radiator fixed along with the thermostat cooling system and now my check engine light has come on.Are my repairs the reason the light came

Do I really need to check my engine when that light goes on?

sms390 — Mon, 08 Dec 2008 14:16:12 GMT

do i really need to check my engine when that light goes on? do i bring it to a dealer, or to any repair shop? or someplace like autozone?

Reduced engine power light and the magic computer.

tony78 — Fri, 23 Jan 2009 11:23:03 GMT

i read your answer to that guys question about the " reduced engine power light " , i had never heard of that either, so i went to google and typed that in for keyword and a whole page popped up, it looks like the first is a discussion on edmunds for the gm yukon,, i learn something new everyday.
As for Ray 80's post of " magic computer " it took a little while to track that down, check out this collection of videos at: revver . com / video / 1010253 / grisdismations-mosbot-in-magic-computer

My engine light stays on. The manual is very vague, anyone know the deal, can't afford a large service bill.

tmo2 — Sun, 12 Apr 2009 11:56:58 GMT

Motor has 150,000, just bought so not sure when last service was performed. The engine lamp is on and above the overhead lights there is another indicator lamp that came on at the same time. It looks like a light bulb, not in manual.

AIT sensor on a 2005 Chrysler Sebring.

crystalc2 — Mon, 27 Apr 2009 21:57:44 GMT

Where would I find the ait sensor on a 2005 Chrysler Sebring any help would be great.

My check engine light shows a code for stopped up EGR passages. How do I get this corrected?

1951don — Thu, 18 Jun 2009 09:51:29 GMT

Check Engine code 001,002,003,004
2.4L 4cyl engine
automatic transmission
remains on constantly

How to fix electric brake system. Lit up on info center with ESP light. 05 Jeep Grand Cherokee 4.7 v8.

aut92 — Sun, 21 Jun 2009 21:41:12 GMT

2005 Jeep Grand Cherokee 4.7 v8 elect. brake system light came on info. center along with esp light. How do you fix this?

The EML, DSC and the Brake (yellow) lights turn on.

arnulfo1 — Thu, 27 Aug 2009 20:01:06 GMT

The EML,DSC,Brake"yellow" lights turn on

Blue temperature light keeps coming on.

bessmoo — Tue, 18 Aug 2009 13:24:38 GMT

Blue temp light keeps coming on after car is warm, then turns off then on again. Can you tell what this might be?

Hard idle and service engine light on. Ford Explorer XLT.

bxblkman — Mon, 02 Feb 2009 20:35:09 GMT

I have a 04 Ford Explorer xlt and the service engine light came on 2 days age plus the car idles hard where it shakes and vibrates uncontrollably.

Have a 2008 Hyundai Sonata and the sensor light on dashboard near the vin # keeps blinking.

buc7 — Tue, 26 Feb 2008 08:23:04 GMT

Why is this light blinking all of the time. Just purchased it 5 days ago. Is this normal?

My engine lights and brake lights are acting up

mipassat — Thu, 24 Apr 2008 23:30:28 GMT

The first time it happened with all the warning signals going off my car was at a stop sign and once I was setting off to go I couldn't move forward-it felt as if something fell off. As if the brakes had collapsed. Was in the shop for several days...as soon as I pick it up from the shop the lights go off again (a day later)....the dealer can't seem to figure out the problem...can anyone help? I wouldn't want the same thing to happen while I'm actually driving the car down the highway? Could it be a brake issue, electronic? Or just a figment of my imagination?

94 Lexus LS 400. Instrument panel delays coming on for 20 minutes in cold weather. Why

deg2 — Sun, 30 Nov 2008 21:52:01 GMT

The delay begins when outside temps are below 70 degrees. Its takes 20 minutes for the lights to come on when temp drops below 50 degrees.All interior dash/shifter lights (except heater/A/C mode green indicator lights)

I have 97 Jeep Cherokee rear lamp failure is displayed. Not all the time comes and goes. Is it a fuse? Where is the fuse?

wobblin — Wed, 10 Dec 2008 01:43:18 GMT

the light doesnt come on all the time it may go off and not come on for several weeks.

2006 Dodge Stratus. Brake light comes on then goes off twice. Then check engine light comes on.

bheath0328 — Mon, 29 Dec 2008 14:35:06 GMT

also the trunk light is out on car?
any suggestions?

Toyata Camry brake warning light comes on when brakes are applied. What does that indicate?

chc2 — Sun, 15 Mar 2009 22:45:57 GMT

Car is a newer model we borrowed for a day or so; probably late 90's early 2000's

Why are my brake and battery lights on? Nissan Altima 2005.

roypow — Wed, 17 Jun 2009 19:32:18 GMT

Why is my brake and battery light on? Nissan Altima 2005.

I have a 1997 Toyota Camry LE, which is running like brand new, but there is a check light on. Why?

tpulak — Mon, 31 Dec 2007 12:02:51 GMT

I drive my Camry carefully, and it is still running like brand spanking new, but it has this engine check light on. Does anyone have this problem? If they do, can they tell me how to fix this?

My check engine light flickers at 5000 rpm. My car is 2004 toyota matrix and has 39000. Please help.

pandesal — Thu, 03 Jan 2008 14:14:19 GMT

When I put my car to 3rd gear and almost reach around 5000 rpm, my check engine light flickers / blink. It doesn't stay on. I think as soon as rpm decrease, it's gone. Please help. I don't want 120 to go to the dealer if can fix it easily. I'm not sure if it's only 3rd gear though...

I have repaired the TPS and Coil pack in my 2004 Grand Cherokee and the check engine light keeps coming back on

rose14 — Fri, 04 Jan 2008 09:43:46 GMT

I have owned it for 3 months the check engine light came on and I had it checked. I replaced the TPS and the coil pack because those were the codes that came up. Now the check engine light is back on and it is reading undocumented code. What could this be? hELP VERY FRUSTRATED

I have a 97 Dodge Neon DOHC assembled in mexico. Replaced Idle air valve/TPS still bad gas milage.Help

bobbea — Sat, 05 Jan 2008 09:16:08 GMT

My 97 Dodge Neon has had a few problems but still gets me to where I am going. For a while it would on occasion try to stall unless foot was kept on gas then would correct itself sometimes in a day sometimes in a few weeks. I replaced the TPS and Idle speed valve because gas milage also dropped from 250-300 miles per tank to 125 miles per tank. Now I get about 175 miles per tank.Better but still not fixed. I also have a problem with oil light. It comes on after car running for about 15 minutes but will go off if idle about 15000-2000. Was told sensor on top of motor could be dirty-cleaned motor, changed valve cover gasket/plugs did oil change-light went out for a few days now back on. No engine noises. Any ideas. Of yeah, the mechanic did fix a vaccuum line also..not sure if more need replacing.

How can i diagnose engine light on 1994 Honda Accord, h22 swap 2nd engine

boyo8023 — Sun, 06 Jan 2008 11:05:19 GMT

This is my 2nd h22 swap in this car. the first one done by a shop this one by me. I am looking for a handheld diagnostic computer but all are for '96 or better. I checked all wires, oxy sensors are still good, another thing v-tec not activating:?. The engine is the h22a not the other one everyone says lookout for any suggestions?

was running fine and wants to out now and check engine light andcheck oil light

subzer0 — Sun, 06 Jan 2008 20:47:35 GMT

Pontiac Grand Am - ok i was messing around and revd the car up hit the rev limiter like 3 times
and didnt think anything of it went to go to store and as i acelerated it bucked and then when i was slowing down to turn into store parking lot wanted to stall out and than it did when i got in parking lot and took a few minutes to start back up after this the car hits rev limiter with out trying to hit it i have done a lot of work considering i only had car1 month so far i replaced fuel filter serviced trans and new power steering pump and it never gave me any problems was just wondering of the fuel pump might going bad

i have a 2003 grand am. i had my oil changed last week, now my service engine soon light is on, any reason why? t

eddiesmom1 — Sun, 06 Jan 2008 21:49:11 GMT

service engine light on after oil change

audi a6 oil pressure light went on and oil is now topped off but the light won't go out. Ideas?

eik — Mon, 07 Jan 2008 01:40:00 GMT

am i still able to drive with the oil pressure min light on or is this a tow to the dealer?

i have a honda crv 2002,

kmcculloch2001 — Mon, 07 Jan 2008 17:40:11 GMT

i have a honda crv 2002,(manual transmission) i recently replaced the clutch assembly & a day after that was done the malfunction light came on, when checked by the mechanic, the code said O2 sensor, i got a new one & had it replaced, but half a day later it came back on & hasnt gone off since. When this happened the last time about 2 months ago, the dealer changed the fuel cap & it was gone...what could it be this time????

how to read 91 dodge dakota "maint req" fault code

jdcreep — Sat, 12 Jan 2008 12:40:30 GMT

My first Dodge! "Maint Req" lite is on. Engine is 4 cyl, manual, 2wd. How can I read the code? Thanks.

i have a 2002 jag s-type 4.0 i change all spark plug and now getting code po304. please help

clanay — Sun, 13 Jan 2008 17:21:29 GMT

I have a 2002 jag s type. I am getting a misfire in cylinder #4. The code is p.o. 304. I have change all spark pluggs & coil packs. I reset the codes. Drive car a while thean code 304 comes back. I was wondering is their a fuse that controls that coil pack?

can you tell me why my jag is misfire and getting code 304 2002 jag 4.0 s-type change all spark plugs and coil pac

clanay — Sun, 13 Jan 2008 19:28:27 GMT

i have change all spark pluges and coil pack drove car and now i getting a code 304 reading what am i doing wrong can you please tell me what is going on

I have a Toyota Corolla 2001. Just last week the check engine light came on. what could be the causes of this?

ateeqahmad — Mon, 14 Jan 2008 12:57:36 GMT

the car has 58,000 miles on it. The engine is not heating up either and the car sounds the same as usual. Is it just time for the 60K service?

Please advise.

I have a 96 chevrolet concorde and the engine light comes on when it's running I smell gas fumes from front of car

lincolnlisa — Mon, 14 Jan 2008 19:45:13 GMT

I notice fumes coming from the front of the engine when the car is on espeically when heater is on? I am not sure what it is, but I am very worried..help!!

Got an 01 Camry & Check Engine light goes on & off May stay on for 2 weeks & stay off even longer Any ideas?

driveguy1 — Mon, 21 Jan 2008 12:40:56 GMT

I have taken it in to dealer once. They said bad catalytic converter. Did not have converter replaced. They didn't have one in stock.
I can reset by disconnecting battery (R&R battery in November 07) & light stayed off for about a month but it's on again.
The light will however go off without me doing anything & come on again some time later. It will stay off for about a month if I remember correctly.
Everything seems to be normal except gas mileage is a little lower than it used to be by about 1 or 2 MPG. Approx 125,000 miles which may be why MPG is dropping a bit.

After I put gas in my car today it started shaking, smelling funny, and the check engine soon light went on...???

brooke4681 — Mon, 21 Jan 2008 15:06:56 GMT

2002 Ford Explorer. Only shaky when I am stopped.

What is a code 41 for a 89 Buick LeSabre and what does it really mean? How much will it cost to get it fixed?

buick89 — Wed, 23 Jan 2008 20:08:48 GMT

The car runs great,no problems at all,just wanna know what the code means and a estimate on how much it will cost me to get it fixed.Someone told me it was a cam sensor and I don't know what that is.If thats what it is,how much will that cost to be repaired? PLEASE HELP ME!!!!!!!!!!!

How much will it cost to repair a cam sensor for 89 Buick LeSabre

buick89 — Wed, 23 Jan 2008 20:17:38 GMT

My "Check Engine Soon " light is on and the code was 41,which someone told me that was a "Cam Sensor Malfunction" but the car runs great,no problems at all.Please give me info on that code so I will know what I am dealing with,PLEASE!!!!!!!!!!!!!!!!!!!