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Monday, November 16th, 2020 AT 11:05 AM
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RUDY8459
- MEMBER
- 14 POSTS
OK, thanks for help.
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My engine has a rough idle can I fix it?
KEN L
- MASTER CERTIFIED MECHANIC
- 47,658 POSTS
For rough idle the first place I go is a compression test becasue low compression shows up first at idle.
Here are two guides that can help us find out what the problem is.
https://www.2carpros.com/articles/how-to-test-engine-compression
and
https://www.2carpros.com/articles/engine-vibration-at-idle
Please let us know what you find. We are interested to see what it is.
Cheers, Ken
Here are two guides that can help us find out what the problem is.
https://www.2carpros.com/articles/how-to-test-engine-compression
and
https://www.2carpros.com/articles/engine-vibration-at-idle
Please let us know what you find. We are interested to see what it is.
Cheers, Ken
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+1
Monday, November 16th, 2020 AT 11:05 AM
(Merged)
RUDY8459
- MEMBER
- 14 POSTS
Hi Ken, well the check SES light turned off on it's own without any more repairs. The idle is still slightly rough but has noticeably improved. When I had the diagnostics done a compression test was done and I was told compression was good all cylinders. The SES has been off for more than a week so I think I will leave well enough alone for now. Thanks for all the help.
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Monday, November 16th, 2020 AT 11:05 AM
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KEN L
- MASTER CERTIFIED MECHANIC
- 47,658 POSTS
Good to hear, please use 2CarPros anytime we are here to help.
Cheers, Ken
Cheers, Ken
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Monday, November 16th, 2020 AT 11:06 AM
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CMILLZ
- MEMBER
- 1 POST
- 2001 CHEVROLET SILVERADO
- 6.0L
- V8
- 4WD
- MANUAL
- 200,500 MILES
My Chevy Silverado stars fine, but idles a little rough. When I apply the gas, or put it in gear, the engine sounds like it's bogged down and it shuts off. We just replaced the EGR valve, but it hasn't made a difference. Do you know what could cause this problem?
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Monday, November 16th, 2020 AT 11:06 AM
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FREEMBA
- MECHANIC
- 1,152 POSTS
If your check engine light is on have the computer scanned for codes.
Also check the fuel pressure. This could be a sign of a failing fuel pump.
Fuel pressure should be 55 - 62 psi
this guide will help us
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Also check the fuel pressure. This could be a sign of a failing fuel pump.
Fuel pressure should be 55 - 62 psi
this guide will help us
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
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Monday, November 16th, 2020 AT 11:06 AM
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RCACKA
- MEMBER
- 2 POSTS
- 2001 CHEVROLET SILVERADO
- V8
- 4WD
- AUTOMATIC
- 11,900 MILES
I just changed the spakr plugs, and wires and changed the air filter and oil yesterday. Went out today to start it up and the engine is idiling really rough. Usually idles at 700 rpm, and this morning, it would spike at 1,000 and then surge and try to find a idle speed and then it would die, Any help?
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Monday, November 16th, 2020 AT 11:06 AM
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JDL
- MECHANIC
- 16,098 POSTS
Hello, did you have this problem before you worked on it? Maybe you knocked a wire/connector loose or a vacuum line? Can you check for codes?
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Monday, November 16th, 2020 AT 11:06 AM
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RCACKA
- MEMBER
- 2 POSTS
I did ot have the problem prior to Saturday. I will look everything over again, but I did not see anything that was loose. I hooked a code reader up to it and it said pass. So I do not know what the problem is.
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Monday, November 16th, 2020 AT 11:06 AM
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