idling like crap

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Nov 1, 2011 | 07:09 PM

sawfish7

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idling like crap

Throwing codes po171 & pp174 and idles like its gonna stall and some times does. when it first started could hear a whistle when under load up on rpm, IAC valve dirty?

Nov 1, 2011 | 07:14 PM

lddrew

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From: GA

you're going to need to tell people WHICH v8 engine you have lol...

Nov 1, 2011 | 09:07 PM

sawfish7

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Sorry thought I put that in there 5.4 2000

Nov 1, 2011 | 09:14 PM

lddrew

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From: GA

how many miles?? it may be time for plugs and coils

you may try cleaning the MAF, and checking the air filter for restrictions.

i'd start by getting the codes read

Nov 1, 2011 | 09:49 PM

sawfish7

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I did I think I put wich codes poppin in the first thread basically its running lean plugs and coils about 1.5 years fresh fuel filter brand new she's +200k