HELP...1989 f150 sputtering and quit
04-10-2010, 10:17 PM
#22
Map
Today I unplugged the MAP sensor and started the truck and it wouldn't stay running for more than 3 or 4 seconds. It was running alot worse with it unplugged. I tried to clean the plug but it was hard to get to. I did take a little sand paper to the stabs that go back inside the plug. I'm going to have to find a way to clean that plug because it is a little corroded. I also pulled the Idle air sensor and cleaned all the carbon build up out of it with carb cleaner. Then before I got to do anything else I found a gas leak. It looks like its around the fuel pump in top of the tank. Its never leaked before in the past month that I've had it. ( Been under the truck alot ) Just filled it up though. Got all of the gas out of it and I'm going to drop it tomorrow and see what the problem is. Will keep you posted. By the way I bought a new sending unit to fix my temp gauge but I can't seem to locate it on the truck and its not in the Haynes Manual. If anyone knows I would apprecieate it.
04-12-2010, 01:47 AM
#24
My truck is fixed!!!!!!
I just thought that I would stop in and let everybody know that my truck is fixed. I checked the fuel pressure like suggested in the forum and it was from 80-100....So i went and bought a pressure regulator put it on the truck and presto it was fixed. No more backfiring when you rev it up and no more sputtering and quitting after it warmed up. It runs like a new truck. I just wanted to say thank you to all of you truck guys on here for all of your help...Now I can enjoy my truck and do some of the stuff to it that I want to do. I look forward to being a member of this forum for a long time.
06-30-2015, 11:19 AM
#28
Junior Member
ok today i changed the plug wires and the air filter....i drove the truck about 20 minutes(it was all the time i had) and it was still sputtering...at least it didn't quit...it was fine for the first fifthteen minutes but then the same thing...it was ok as long as i was keeping it going at a steady speed like on the highway, but then if i would stop at a light and try to take off again it would jump and sputter like it wasn't getting fuel... i can't find the paper that i wrote the codes on but the other code was either 34 or 36 or 54 or 56 not real sure but i guess i'm going to go and have it put on the computer again and see what happens this time....is there any way to check the map sensor or the o2 sensor to see if there bad without buying new ones???? i'll check the fuel pressure tomorrow and see what it is...
***** Ever notice that Previous Owner and Pissed Off have the S*A*M*E ACRONYM??? ****
Last edited by MTmtntinkeringagain; 06-30-2015 at 11:21 AM.