Possible egr problem
03-09-2013, 01:41 AM
#1
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Possible egr problem
1998 f150 4.6 v8 with 224000 glorious miles.
Codes are:
P0133
P0402
P0301
P0171
Rough idle and stumbling on acceleration and just running like crap in general. I have searched high and low and I cannot find any vacuum leaks. At idle the egr vacuum line has a slight pulsating vacuum. I read that if you hook a hose to the egr valve and suck on it while the engine is at idle it should idle very bad and possibly stall, but when I do this, the engine rpms lower and the idle seems to smooth out.
I have no clue where to start with all of these codes or which ones are related to each other. Any help would be much appreciated!
Codes are:
P0133
P0402
P0301
P0171
Rough idle and stumbling on acceleration and just running like crap in general. I have searched high and low and I cannot find any vacuum leaks. At idle the egr vacuum line has a slight pulsating vacuum. I read that if you hook a hose to the egr valve and suck on it while the engine is at idle it should idle very bad and possibly stall, but when I do this, the engine rpms lower and the idle seems to smooth out.
I have no clue where to start with all of these codes or which ones are related to each other. Any help would be much appreciated!
03-09-2013, 07:59 AM
#2
Sounds like the same as the thread. "Ive changed everything still running........"
Check his thread . IMO. Sounds like a vacuum leak, DPFFE issue or clogged ports to the EGR valve.
Check his thread . IMO. Sounds like a vacuum leak, DPFFE issue or clogged ports to the EGR valve.