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2000 yukon denali idle issues
When the weather is cold outside the engine seems to run smoother. And when the engine is cold in the mornings it runs smoother, as soon as it warms up it causes issues.- socalyukon
- Post #29
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
would bad o2 sensor cuase that? what you suggest I look into next?- socalyukon
- Post #27
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
Yes the cap is Delphi, and Im planning to take the yukon to vegas this weekend, hopefully it holds up to vegas and back from LA. The 3 cylinders where 168psi while the rest where at 180pis. ---------- Post added at 05:55 PM ---------- Previous post was at 05:55 PM ---------- In the morning the...- socalyukon
- Post #24
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
OK just changed the TPS sensor for the hell of it and made no difference. When the truck is started in the morning on a cold start it runs perfectly smooth, but when it warms up it develops the slight shaking at idle. And the scanner would show a miss on cylinders 2,7,8. ---------- Post added...- socalyukon
- Post #22
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
distrubotor cap is a delphi one, and it looks fine.- socalyukon
- Post #20
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
Ive driven 2-3k miles since that code and it never came back. Im getting sick of this fuckin car, Ive had 3-4 other silverados with the same motor and those never game me any problems but this yukon has been pissing me off. Would the TPS cause this or EGR valve? Ive already cleaned the EGR valve...- socalyukon
- Post #18
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
no its not. ---------- Post added at 01:30 PM ---------- Previous post was at 12:20 PM ---------- You think bad O2 sensor would cause a slight rough idle while in park and drive? I once got a O2 sensor code but the dumbass mechainc deleted the code before i could see which one it was and it...- socalyukon
- Post #16
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
right now its more of a rough idle while its in park and drive standing at idle- socalyukon
- Post #14
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
what do you mean more than 50 rpm? And only when going up a steep hill and when i lose power does the check engine light flash and stay on and every time its random misfire. code.- socalyukon
- Post #12
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
yeha but ive already sprayed carb cleanre all around those areas looking for a leak and nothing, this motor is pissing me off already ---------- Post added at 11:08 PM ---------- Previous post was at 10:14 PM ---------- I read somewhere it could be the knock sensor? Another thing Ive noticed...- socalyukon
- Post #10
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
All the wires are good and seated perfectly. My mechanic says that the coil wouldnt cause something like this?? He says it might be a valve issue??? He did a compression test and all of them where 180 and 3 cylinders 2,7,8 where about 10 lower. Sometimes randomly it will shake more than usual...- socalyukon
- Post #8
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
already went bacK AND cleaned and rechecked the gaps on the new 2 month old ac delco plugs. You think a weak coil might cause this? Ive noticed driving today, sometimes stopped at the light it idles smooth and other times you can feel a little misfire, but when your driving down the road or on...- socalyukon
- Post #5
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
Before I swapped the spider, Going up a steep hill the engine would lose power from 70 mph quickyl down to 50mph and start shaking and the check engine light would flash and then stay on until i drove it about 50-100 miles after and go away, Everytime the code would be random misifre.- socalyukon
- Post #3
- Forum: Engine & Drivetrain
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2000 yukon denali idle issues
hey guys got a 2000 yukon denali 5.7 vortec motor and having some slightly rough idle when the engine is mostly warmed up. I will give you some background info, bought the truck with 99k miles and now it has 116k miles, a couple months back i noticed going uphills the engine would lose power and...- socalyukon
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- Replies: 29
- Forum: Engine & Drivetrain
