Engine Performance problem
1994 Ford F150 V8 Two Wheel Drive Automatic 125000 miles
I am not getting any response from my first post I paid for so I will try someone else. I have an issue where the truck starts up fine and runs. And after a few minutes the idle starts loping or slowing down then sometimes it corrects itself and idles normal. Then back down to wear it is barely going. The last mechanic told me to clean the MAF sensor which I did and also check the TPS and it was good and also clean the egr valve. I replaced it cause it was so old. No different. I had previously replaced the IAC before contacting you guys.
Now here is what I have found since then. The plastic vacuum hose that went to the fuel pressure regulator was 3/4 broke in one spot and barely hanging on and cracked in another. So I quickly replaced it and same issue. My question is with the hose being broke and cracked for awhile make the regulator not work properly and now its bad? Cause after I have fixed the hose and put it on, the ilde made no difference. Even with problems I am having you would think that should at least make some sort of noticable difference.
have the same problem?
Wednesday, September 1st, 2010 AT 8:18 AM