Silverado :: 2008 Z71 - Check Engine Light Came On
recently my check engine light came on, I had the codes read, the tech said that i had air getting into my fuel system, i replaced my gas cap. my light is still on, he also mentioned some kind of emissions sylinoid may need replaced, or a vent valve idk.
I recently drove up to Sandusky OH for the weekend, my light didnt come on til i refuled with gas containing 15% enthenol. the engine is running fine, no miss, has good power. I ran it down to a 1/4 of a tank and filled back up and the light is still on.
C/K :: 1996 Silverado 350 Engine - Check Engine Light Does Not Come On
1996 Silverado 350 engine. When I turn ignition key on, all system check lights come on as they should except "check engine soon". If I connect code reader the light comes on and will come on the next time ignition is turned on but only one time. The second time you try it, it does not. What would cause this?
View 3 RepliesSilverado :: Check Engine Light Came On - Mass Air Flow Sensor
Ok so I just replaced my mass air flow sensor about a week ago. My check engine light just came back on and when I scanned it it said mass air flow sensor. What could be causing this to happen again? The codes are P0102, P0440, P0440.
View 4 RepliesSilverado :: Check Engine Light On / Sound Skips On The Radio
First of all, its 5.7L V8, it's been very well maintained, I've had my fair share of problems but nothing that has been that serious, except for the "check engine" light for the O2 sensor.
For about the last 4 months i've had the problem of the truck sometimes jerking while on the road. Once i started to speed up it seemed to not speed up which when it did, it jerked a bit. That was in the beginning.
AS OF NOW, the jerking has stopped but every now and then when i pull out of the garage and start to turn onto road it turns off, but all the status lights are left on. & when turn the key to turn it off and restart it starts again every time. Ive noticed that i was better off with the "check engine" light on then now because every time it is off it has these problems.
Also, when I barely start to tap the brake, again not all the time, sound skips on the radio. & this always happens when i tap on the brake & this happens more frequently when the "check engine" light is off.
Chevrolet - Silverado :: Shaking While In Idle / Check Engine Light Came On
I just bought this used truck, 2005 Chevrolet Silverado 1500 extended cab. I noticed some shaking while in idle when I got it back home. The check engine light came on a day or two later, and I recently had a diagnostic test ran on it at the local AutoZone. It came up that I had a P0135 o2 sensor (bank 1 sensor 1) malfunction and a P0101 Mass Air Flow Sensor signal performance issue. The check engine light comes and goes. I stopped by Walmart for about 10 or 15 minutes and when I got back into the truck, the issues reoccurred. For about a minute, the check engine light actually started blinking! And then went away and started running normal again. Its upper confusing. I bought some MAF cleaner to use on it tomorrow and figured that wouldn't definitely clear up my issues, but I'm still wondering if the MAF sensor is enough to warrant the CEL to blink like that?!
View 6 RepliesSilverado :: P0307 - Check Engine Light Comes On When Going Up Hills / Under Heavy Load
I have a 2001 chevy silverado 3500 6L gasoline engine.
I have been getting a P0307 random multiple misfire #7 on and off for a few months now, occasionally the P0300. Check engine light comes on when I am going up hills, often under heavy load and sometimes when the truck is cold in the morning and the truck starts to run rough until the code clears, which it does pretty quickly usually. I have replaced coil, crank sensor, cam sensor, fuel injectors. If I unplug the battery overnight the code will be cleared and the truck will be running just fine the next day.
Silverado :: All Dash Lights Come From Check Engine To ABS Light - Gas Gauge Goes To Empty
I have a 2001 Silverado and for some reason all the dash lights on come from check engine to the abs light gas gauge goes to empty then back to normal 9 times out of 10 these lights come on. It has done this for a while and doesn't effect how it drives, I am possibly wanting to sell it and cannot explain hat it runs fine with this problem. Where do I start to figure this problem out .
View 4 RepliesChevrolet - Silverado :: Check Engine Light Comes On After Intake Manifold Gaskets Replacement
I have a 1998 chevy silverado z/71 4x4. I had a water leak and had the intake manifold gaskets replaced. Ever since then, the check engine light comes on and it soots up the o2 sensors and the 4 plugs on the right bank. It may run good for a month or so and then it starts all over again.
View 1 RepliesSilverado :: Check Engine And Battery Lights Comes On
I have an 05 silverado 1500 crew cab z71 and i have a little bit of an issue with my Check Engine Light being on. The problem is when I tried to pull the code from the computer it wouldn't even read that it was plugged in at all. I talked to a buddy of mine and he said that could possibly be the reason its on.
What I am trying to figure out is what i have to do to remedy the situation so that i can actually be able to pull codes in the future. My truck inspection is out and need this light fixed.
Also every once in a while my battery light comes on and it says i need to service my charging system also because I have never seen it before.
Silverado :: 2000 5.3 / Check Engine Oil Level?
So around September I changed my oil to mobile 1 extended performance full synthetic. Since then my check engine oil level light has came on twice, today being the second time. Both times it was at the add mark. The truck does not leak ANY oil, what might be going on?
View 1 RepliesSilverado :: Check Engine Oil Level Is On After Changing Oil
I just change my oil last night and this morning my check engine oil level is on and my oil dipshows the correct amount of oil, what can be the problem?
View 5 RepliesOldsmobile - Alero :: 2003 - Entire Engine Shudders Upon Start And Check Engine Light Flashes
Having some issues with my 2003 Alero 4 cylinder. Upon start the entire engine shudders and the check engine light flashes. I have to turn it off and turn it on and it will stop most of the time. I've taken it in and the mechanics can't get it to reproduce the same issue for them. Just replaced all four plugs, boots, ignition coil.
View 1 RepliesBmw - 330 :: 2003 - Check Engine Light Comes On
BMW 330i 2003. "Check Engine" light has been on for months.No performance problems noticeable in the car.But no one can seem to figure out what's wrong.Can this be a computer issue?
View 3 RepliesPassat (B5) :: 2003 W8 - Check Engine Light Came On
I have a 2003 W8 and the check engine light came on today for the cam b sensor... The car has had no problems and drives fine, I do not quite get why all the sudden it is on, and before I bought the car, 2000 miles ago the cam sensor was replaced for inspection, and I drove it for 1000 miles, and now the mil is on and it is running a little ruff... Where exactly on the head is it located? which head would have cam b sensor? I really do not think it is bad again.
View 2 RepliesVolvo - S60 :: 2003 - Check Engine Light Comes On?
I have an '03 S60 - nonturbo with 239,000 miles. I've never had any performance problems with the car.
Here is the situation - The check engine light has gone on 3 times in about the last 2 months. It just happened for a fourth time today. Each time it's exactly, almost exactly the same distance from home, from a cold start on a hot day.
Same code each time. I don't remember what it was - something to do with the air mass meter - it was on the paperwork from the dealer that I can't find right now.
First time the code came on was two days after getting the air filter changed so I suspected they didn't assemble the air filter case properly. I brought it into the mechanic. They recommended pressure cleaning the throttle body and changing the air mass meter. I opted not to do it and they just reset the light.
Second time I remember putting oil and an oil additive in (Lukas oil) to top off the oil in the car before I left.
Brought it back to the dealer and when I spoke to the mechanic at the dealership.He said I could do the throttle body cleaning and change the meter, but that wasn't the problem. He warned of some sort of internal engine problem suggesting that an oil path from the top to the bottom of the engine is clogged and causing some sort of other ambiguous issue in the engine.
Btw according to the car computer it gets 31 miles to the gallon.
Third time- I topped the car off with oil (cheap 7-11 oil). I drove the same distance and the light went on.
The second two times the light went off on its own.
Fourth time just happened on a quick errand. Car had been sitting for about 3 hours since it last ran. When I ran it earlier today I didn't have the light come on.
I should note that several years ago (at about 180,000) the engine had some sort of check valve at the back of the engine replaced twice because it was whistling.(With the whistling the check engine light did not go on). The second time it was replaced they did an oil cleaning procedure that cleaned the oil path from the top to the bottom of the engine.
Is this really a devastating engine problem? What's going on?
Passat (B5) :: 2003 - Check Engine Light Coming On
I have about 75K on my 03 1.8t on started having the check engine light coming on in the last few months. The dealers diagnosis was that I wasn't tightening the gas cap enough but I don't believe that because I do at least 3-5 clicks when I close it. I'm a bit baffled. After the last time I filled up at the gas station, I noticed the cap was loose so I've ordered another cap thinking the last one has lost its ability to seal properly...
View 3 RepliesLexus SC430 :: 2003 - Can Low Battery Cause Check Engine Light?
About month ago, the CHECK ENGINE, VSC, and VSC OFF lights came on in the dash of my '03 SC430 (~175k miles). Took it to the dealer and they read the codes; indicating a bad O2 sensor. They replaced it, and the lights went off. A few days later, the lights came back on. The lights remained ON until this past weekend.
On Sunday, i went to start the car in the morning and the thing wouldn't turn over. Turns out the battery was dead. The label indicated it was 5yrs old. So i bought a new battery. After installation, i noticed the error lights were no longer illuminated on the dash, but just figured it was due to the fact that the battery was disconnected during installation. But after driving it extensively since then, the lights have remained off.
Something else i've noticed since installing the new battery is the lack of the "rotten egg" smell from the exhaust. Before the change, i noticed a significant decrease in acceleration and the emissions smelled very bad. But for the past few days, i've noticed a dramatic increase in power and cleaner smelling emissions. Not sure if they're related...
Could the check engine lights have been the result of my battery dying? I'm not sure why they haven't come back on since the battery replacement. Nor a reason why i'm noticing improved performance and better smelling emissions.
Camry :: 2003 LE Check Engine Light Code P0031
I own a 2003 Camry LE. I went to Autozone to find out what the check enginge light was for and was given P0031. When the service person checked it out on the computer he said the probable causes were:
1) open or short circuit conditions
2) poor electrical connections
3) failed oxygen sensor
4) EFI relay fault.
I asked how it could be narrowed down and he said it I would have to get the car checked out.
Camry :: 2003 Sputtering And Hesitating - Check Engine Light On
I changed the spark plugs in my daughters 2003 camry, and now it is sputtering and and hesitating. is there a chance I put them in to tight? The check engine light is on, and it will start blinking for a few seconds and then stop blinking and remain on when the car gets up to speed. The car wasn't doing this before the sparkplug change.
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