Texvet
OBS Enthusiast
1992, 5.7, SCLB, 1500, 2WD
I finally worked through my no start issue. I also replaced the MAP sensor because the 33 code showed up after it left me stranded. I don't think the MAP sensor had a role in the no start. But replaced it because it thru a code.
The truck runs as it should.... Except it has a bouncy idle at cold start. I does it for 30 seconds or so, then smooths out steady at 700 rpm - until I put it gear - then it stumbles again, bouncing it 1000 - 1500, then settles in at 550 - 600 (in gear). Acceleration is good/normal. Half the time when I come to a stop it bobbles/stumbles but hasn't stalled because throw it into neutral. Then it goes back to a steady idle.
I pulled the IAC to see if it was dirty. It was clean as a whistle. Timing is right on the 0 degree mark.
What are your thoughts?
I finally worked through my no start issue. I also replaced the MAP sensor because the 33 code showed up after it left me stranded. I don't think the MAP sensor had a role in the no start. But replaced it because it thru a code.
The truck runs as it should.... Except it has a bouncy idle at cold start. I does it for 30 seconds or so, then smooths out steady at 700 rpm - until I put it gear - then it stumbles again, bouncing it 1000 - 1500, then settles in at 550 - 600 (in gear). Acceleration is good/normal. Half the time when I come to a stop it bobbles/stumbles but hasn't stalled because throw it into neutral. Then it goes back to a steady idle.
I pulled the IAC to see if it was dirty. It was clean as a whistle. Timing is right on the 0 degree mark.
What are your thoughts?