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00 5.4 rough startup

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Old Mar 15, 2011 | 08:14 PM
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00 5.4 rough startup

5.4 with 183,000, SES light, i had it cheched, it said bank one lean, which side is that, im assuming its a oxygen sensor, also, pass. side injectors buzz??

Ok, so i start it 1st thing in the morning, it runs like it has a cam it it shaking and all, then it revs up to around 1500 rmp and smooths out, runs at 1000rpm, then it will start running choppy again, ive put 3 sets of plugs in it, coils about 20k ago, fuel pump and filter 1 month ago, iac valve was replaced once but i dont think thats the problem cause it will idle

Anyone have this problem before, i dont want to just start replacing stuff i dont have to but I understand with these miles its going to start needing stuff
Thanks!!
 
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Old Mar 15, 2011 | 08:17 PM
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the parts that ive said ive replaced is what ive done the life of the truck, not in any effort to fix this problem,
btw, once it warms up it runs fine
 
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Old Mar 15, 2011 | 08:58 PM
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Check your intake manifold. The early engines had problems with the manifold getting hot and warping. They are plastic.

Also, clean your IAC.
 
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