checking for vacuum leak
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checking for vacuum leak
Does anyone know about a "propane leak test" to check for vacuum leaks? My 99 f150 has been driving me crazy with the p0174 code. I have checked just about everything I can think of to find a source of a leak. I did read on here once that there is a propane leak test to find possible sources of leaks. I tried spraying starter fluid around the intake and TB but nothing changes. Just wont stop having a rough idle. Everything else great. Anyone have any ideas? -Bamadoc.
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Finally found it!
After searching forever and checking just about everything under the hood in search of my p0174 error code...I bought a used MAF sensor off e-bay for 10 bucks and out goes the light. Mind you that this was after checking for correct ground, line voltage and output voltages. I had cleaned the old one 3 or 4 times. Moral of the story is dont dont trust components that give correct output voltages? I dunno, all that matters is that it works and the error code has stayed off for 200 miles so far. _Bamadoc
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Joined: Jan 2004
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From: St Louis
Originally Posted by bamadoc
After searching forever and checking just about everything under the hood in search of my p0174 error code...I bought a used MAF sensor off e-bay for 10 bucks and out goes the light. Mind you that this was after checking for correct ground, line voltage and output voltages. I had cleaned the old one 3 or 4 times. Moral of the story is dont dont trust components that give correct output voltages? I dunno, all that matters is that it works and the error code has stayed off for 200 miles so far. _Bamadoc
Keep your fingers crossed but be prepared to see the CEL come back since a faulty MAF should affect BOTH banks, not just one.
Steve
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