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Odd Running when warm

drwambo

Active Member
Joined
June 6, 2001
Messages
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City, State
Richmond, IN
Year, Model & Trim Level
96' Eddie Bauer V6
Hi all,
Have a 96 EB V6 with 173K on it. Usually runs great, but it seems that when it's hot out, or when the engine is hot, it runs badly. Rough idle at start - bogs down a bit. Rev it a few times, and it runs ok. WHen cold, it seems to run fine. I've replaced O2 sensor (front), plugs, wires, cleaned K&N, injectors,and IAC. Reset computer. Don't know where to go from here. Probably will run out and have the codes checked today to see if there is something else going on. Don't have a check engine light or anything. Mileage seems to have dropped as well. Getting around 10 in town and maybe 16-17 on the road. Computer used to be fairly accurate on fuel consumption, but now it seems that it thinks I'm using more gas than I really am. (may have nothing to do with the problem).

Any thoughts?
 






you didn't mention it but did you clean your MAS ? Symptoms point to that.
 






you also didn't mention Fuel Pressure Regulator. When that goes, your milage will crap out.
 






MAS cleaned - no FPR though....
 






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