Is it a 4WD build?
Anyway, be sure you did not crack the porcelain on a plug. With the straight insert its almost impossible to do. The coil packs if you disconnected (I had to disconnect one for sure when I did mine since the wire was too short). Double check the connections especially since you have a code. So what was the plug colour on all four old plugs? Detail .... Tan, white, black, wet etc
So, I was having this issue as well. I had to literally pump the pedal to get some power out of it, and the fuel usage was insanely high, got as low as 9.8 MPG. Weird thing is this didn't happen while the car was still cool, started once it heated up.My daughter has a 2007 jeep compass and says that after getting gas the car hesitates bad and sometimes dies in traffic. What do I need to check?
This is what has been done so far.I don't know what the code is for but if you are getting misfire on a specific cylinder. check and/or replace the spark plugs. There are only 4 so its cheap to do and about the only thing that is pretty easy once you get the plugs out of the depression they're in.
Use name brand gas, not no name off brand stations you might get water from some. I don't pull in if a refueling truck is there. They stir up the tank and you're more likely to get water which eventually settles back down.
I just saw that you changed the plugs. Did the problem get better or worse after you did that. Some engines don't like those high tech plugs at all. Old fashion copper core work only on some engines. Various copper types out there as you know.
I'll have the family car wiz do that and come back with an answer.If you've had the throttle body off and there is a boot behind it (I haven't looked) but if air is coming in behind the Mass Air Sensor, the computation will be wrong and running lean. Some vehicles have a rubber section as my Grand Cherokee does and many other vehicles. Check vacuum hoses are not off, cracked or broken going into the intake manifold typically.
Old trick for checking for them leaks (use care and a generous amount of common sense !!!) A propane torch (no flame, not lit or burning!!), open the tank valve to let some propane out, not too much. Move the output around various fittings, gaskets etc if there is a leak the propane gets sucked in and the RPM will pickup. You have to have a good ear for engines but it does work. Keep the propane away from areas than can ignite it (exhaust pipe & exhaust manifold for example). they should not cause ignition but they're hot and you'll not find a leak where the pressure is out bound.
Nice. Thanks a lot. I guess I'll spend all Saturday doing this at my friends shop. I'll come back with my findings.Ok first the fuel filter is NOT serviceable and is part of the pump.
quote from manual "The fuel filter mounts inside the fuel pump module and is a non-serviceable part."
2nd a pressure test is much easier and less costly.
EG Gas Engines
400 kpa ±34 kpa (58 psi ± 5 psi)
This is the spec and should be a shrader valve like most engines on one end of the fuel rail.
Well that points to emissions issues is my guess. Why, because when the battery is disconnected long enough, say 30 min but varies with vehicles. The PCM resorts to pre programmed engine MAP tables. It re learns and alters the fuel ratio and other parameters over time optimizing it.The think that has helped me run the engine in the first try is unplugging the negative from the battery for a few minutes, plugging it back on, and then it fires up right away, even when cold.
Hello, :sadwavey: I had googled the question u had asked about the 07 jeep compass issue, I too have been having the same problem when I go to any gas station and fill up the jeep has a small hesitation when going about 20 ft of filling up and some times it shuts of when I get on the main road or when I get to an intersection and idle or when take off on a green light, and sometimes it doesn't do it. it also hesitates on days when im driving around on streets! I figured it was because I was topping off so I stopped and filled up to the F line and it still does it. but my question is have u figured out the cause of this issue and if you still have this problem?:dunno:My daughter has a 2007 jeep compass and says that after getting gas the car hesitates bad and sometimes dies in traffic. What do I need to check?