Durfman77
Member
- Joined
- Jan 12, 2020
- Posts
- 41
- Reaction score
- 17
- Location
- Michigan
- First Name
- Charles
- Truck Year
- 1994 /2001
- Truck Model
- GMC
- Engine Size
- 5.7/5.3
Well another post of this ruff start [when cold] for less then minute then all day runs perfect?
I did all the normal things;
new fuel pump
distributor & plugs
IAC new
EGR clean working ok
New Temp sensors [BOTH]
Today I found when I started it ran Fine for 20 seconds then RUFF--stumble almost stalled I put a timing light on it and the timing was all over the place while running ruff then BOOM it ran fine and timing stayed steady???---Where do i go now??
Am checking all connections on sensors etc??
I did all the normal things;
new fuel pump
distributor & plugs
IAC new
EGR clean working ok
New Temp sensors [BOTH]
Today I found when I started it ran Fine for 20 seconds then RUFF--stumble almost stalled I put a timing light on it and the timing was all over the place while running ruff then BOOM it ran fine and timing stayed steady???---Where do i go now??
Am checking all connections on sensors etc??
