Miss on start-up.
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Junior User
Joined: Feb 2003
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From: Ohio
Miss on start-up.
Sometimes after my 89 (300 I6)has sat for a day or two, it runs rough on start-up. It seems to be a miss, and then smoothes itself back out after driving about a half mile. It doesn't allways do this, and there appears to be no rhyme or reason to it. I have cleaned the IAC valve and have yet to dissassemble the EGR and do the same. Any ideas?
Elder User
Joined: Mar 2003
Posts: 522
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From: Warren, MI
Does the check engine light come on? If so, you should try and pull the codes and see what you get. But im not sure if you have that light, i know that not all models had it until like 92 or something.
Adam
Adam
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Junior User
Joined: Feb 2003
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From: Ohio
O.K. the old girl did it after work today and I had the bright idea to try and determine which cylinder was missing so I began disconnecting the plug wires one at a time. Besides getting bitten many times
I didn't learn much. On a couple of the cylinders it killed the engine. On some of the others it did not. It also does not make sense to me how a spark problem would clear itself running down the road in about a mile The engine was running very rough and vibrating with a definate lack of power. Previously the codes showed a BAP sensor would this cause the truck to act like this?
I didn't learn much. On a couple of the cylinders it killed the engine. On some of the others it did not. It also does not make sense to me how a spark problem would clear itself running down the road in about a mile The engine was running very rough and vibrating with a definate lack of power. Previously the codes showed a BAP sensor would this cause the truck to act like this?
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