I just bought a 4.0 jeep cherokee classic, and it sputters sometimes during acculturation, but stops once you reach a constant speed.
I have change:
Crankshaft position sensor
left front half shaft
I just shot the alternator and got 11.9 volts out of that, I have a new on on order but i'm not to convinced that has a lot to do with it. Because it sputtering before the alternator went crazy. I also have a check engine light, it is for the downstream O2 sensor, but my understanding is that it only asses the cat performance.
The last owner put a lift on it and I think it was just put in to general knowledge standards, as I had to fix a few things up. I'm thinking they may have did a way with a few vacuum lines.
With the fuel pressure regulator being in the tank, and it relying on the tank for a vacuum, can a aftermarket cap throw that off?
What do you think it could be?
Is there an easier way to chase down vacuum lines than just looking at each once and following the vacuum line diagram?
How can I trouble shoot the fuel pressure regulator.
have the same problem?
Monday, January 3rd, 2011 AT 2:03 AM