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97 F150 5.4
Recently replaced all plugs and two COPS....been running great, wife's truck btw and she imforms me that it's been idling rough.....I drive it and sure enough, it runs great, accels nicely but when pullin up to a light I notice the intermittent rough idle.....sometimes even idling good but too high, like at 1000RPM's.....the codes downloaded today are P1506, 0402, 0171, and 0174......before I jump in, what do you all see??? Much thanks,
MM |
Originally Posted by Musicman43
Recently replaced all plugs and two COPS....been running great, wife's truck btw and she imforms me that it's been idling rough.....I drive it and sure enough, it runs great, accels nicely but when pullin up to a light I notice the intermittent rough idle.....sometimes even idling good but too high, like at 1000RPM's.....the codes downloaded today are P1506, 0402, 0171, and 0174......before I jump in, what do you all see??? Much thanks,
MM Well right off the bat , I see a Vacume leak and maybe a dirty MAF - Not sure what those other codes are without looking them up - someone will I'm sure. |
Found the leak, it was the elbow at the back of the intake, the one that goes to the PCV....only problem I had was I couldn't find a suitable replacement...my bad elbow has two different orifice size on hte elbow...went the the dealer and ponied up the 35.00 for the whole assy, including the PCV....running much better, thanks....you guys are way cool....MM:bows:
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