Jeep Grand Cherokee - Recent Questions, Troubleshooting & Support - Page 9
Brake pedal got hard now
skdavisbob, This sounds like you have a problem with the brake booster that is attached to the firewall. When these boosters fail it is like trying to stop a house as you describe here. There is a one way check valve near the top of the booster that uses vacuum from the engine to operate. Inspect the hose and be sure that it is attached at both ends and that there are no leaks in this hose. This can be done by running the engine and listening for a leak. (hissing noise) Replace the hose if faulty. If you don't hear any vacuum leak then turn the engine off and pull the check valve out of the booster. This takes a little effort as it is quite secure in the grommet. You should hear a vacuum leak for a split second because when the valve is removed it will allow air in (if it is working properly) and you should hear the leak. If you don't hear the hiss, then test the valve by blowing through it both ways. As stated, this is a one way valve and you should be able to blow air through one way but not the other. If you can blow air both ways then the check valve is faulty. If the hose and valve are working properly then you will have to have the booster replaced. Good luck with this.
What is the firing order for JGC 2005, 5.7l Hemi ?
why ask this. the ECU in all modern cars this is programmed in to ECU, for DIS, or COPS or COIL PACKS
there is no distributor.
is this for cam reasons? why not say why ?
you can google this, vasts sold, and asked on google like 1 gillion times.(lol)
i have the full FSM , here.
so i dont need to google it.
WK jeep first year.
its even marked on the engine.
quote FSM
"These numbers (2) and (3) can also be found
on the top of the intake manifold (1) to the right of the
throttle body."
im still guessing context, (cam or spark)
the real deal from the FSM.
#1 is most forward. and why is marked #1 on all v8s and Vs.
MY CHECK ENGINE LIGHT HAS BEEN ON FOR A FEW
This may sound a little off the wall, but try it, it's cheap and easy and has been known to work occasionally on this problem.
Remove the gas cap, and carefully clean all the threads in your filler pipe well, with a rag,paper towel, or something similar. Now clean all the threads and rubber gasket/"o" ring whatever it uses for good seal on the cap. Now apply a good coat of "vaseline" to the threads, and "o" ring/ gasket. Don't get too carried away with amount, but enough to assist in making a good seal. Put gas cap back in and tighten as required, and see what happens. Sometimes a little vaseline to aid in sealing is all it needs, so you may get lucky, and it doesn't cost anything to try it.
Voltage gauge periodically drops from 14 volts to
I would say the alternator. The fluctuations when it is running indicate that the regulator inside the alternator is worn out. The overheating is probably because the cooling fan is not running fast enough or at all.
My 2002 jeep grand cherokee shut off while I was driving
102417
Most common cause of this is crank position sensor. however there are several equally good reasons as well. Have your codes checked with a scan tool, check your battery voatage (should be 12v or better) and listen for fuel pump running in tank with key on.
There are individual component tests you can make with a decent volt/ohm meter. Test for cps is that between b&c terminals there should be no connection (continuity) same reading as you get with meter turned on and test leads not touching anything. You can find instructions in most manuals including vehicle -specific ones such as haynes.
This is not a solution. unless someone gets lucky and guesses correctly, only proper testing will get you an accurate diagnosis!
good luck!
Where is the flasher relay for a 97 jeep grand
Two FLASHER applicatiosn there:
Hazard flasher: Front seating area, driver side, under dash, driver side of steering column, mounted in convenience center
Turn signal: Front seating area, driver side, under dash, driver side of steering column, mounted in convenience center
If you need additional details or some repair manual sections, just send us a new comment.
Hope this helps (remember to rate and comment this answer).
2007 Jeep Grand Cherokee won't CRANK - battery is fine.
What is the current status? I purchased a 2007 Jeep Grand Cherokee from CarMax in December, 2009. The first time it wouldn't start was the beginning of March. The dealership could not duplicate the issue. Happened again a month later, they said it was the wireless remote module and that was replaced. Couple months later, happened again. They said it was the key module. That was replaced. Friday night, happened again. I'm waiting for a tow truck Monday morning. Does anyone know the real underlying issue and the resolution?
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