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Motor idles rough and slow on hot start up

Tiny
JAYEARL
  • MEMBER
  • 5 POSTS
  • 2000 CHEVROLET EXPRESS
  • V8
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
Have a 2000 chevy express van. I changed the wires and plugs. The van still runs ruff when I drive. Also added some fuel injection cleaner and still ruff idle and runs ruff
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Nothing you would ever add to a fuel tank is going to repair any problem. Those thing work slightly as preventatives but nothing else. If you have a check engine light coming on, get the codes read first. Someone knowledgeable is going to have to figure out whether it's fuel or ignition causing the problem before you're going to know where to go next.
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
JAYEARL
  • MEMBER
  • 5 POSTS
The check engine light isnt on always. Some day it comes on or a short time. If the the van is in neutral or park and I step on the gas it seems like i'm getting good rpm. But if I put in drive or reverse is when it realy start running ruff.
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Get the codes read.
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
JAYEARL
  • MEMBER
  • 5 POSTS
I've have a code tester put on the van. I didn't recieve any codes stating there was any signals coming from the computer givng me a reason why the van has a ruff idle. Is it possible that the cam shaft could cause this as well. Cause it even when its wet out the van runs even more ruffer then
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
If the check engine light came on in the past and you haven't erased the codes, they will be there to retrieve.
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
JAYEARL
  • MEMBER
  • 5 POSTS
When I got a inspection nothine came up an it passed.
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Tuesday, January 10th, 2017 AT 4:57 PM (Merged)
Tiny
AINTNOJOKE
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  • 1 POST
I had a similar problem and it turned out to be worn teeth on distributor drive gear that allowed slop in the rotor. Real high mileage on vehicle, 360,000.
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Saturday, August 5th, 2017 AT 8:30 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken
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Monday, August 7th, 2017 AT 2:03 PM

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