20 Most Recent 1999 Jeep Grand Cherokee - Page 2 Questions & Answers

The computer might have to be reset.Check you manual to see if you can reset it or try disconnecting the battery.

Oil gauge may be bad, you said you changed the oil sending unit, and tried a aftermarket which worked, so the other option is to have you oil gauge checked. The sending unit may be good but you gauge is not reading proper.

If the alarm goes off, it its because it was armed in the first place. You mist disarm it before entering the vehicle. To disarm it push the remote control unlock button or open eithe front door or liftgate using the key in the keylock.

is yiur batery in your key ok?

Look for a toasted relay. But look very well

Hi.

If fuel pressure is low and you have already replaced the fuel pump, then the problem is usually the fuel pressure regulator. The pressure regulator is in same assembly with fuel filter. The assembly is located to the fuel tank, bolted to the truck's frame. The pressure is tested connecting a gauge like this : Set Sealey VSE952 to the port on the fuel rail. The pressure on Grand Cherokee must be around 49 psi plus or minus 5 psi. If engine runs but pressure is below 44.2 psi , check for a blockage in fuel supply line between fuel rail and fuel pump module (e.g.kinked line). If the line is not blocked, replace fuel pressure regulator and filter. Test pressure with and without fuel cap on.

Another test to be done is reading pressure, then shutting the engine off with the gauge connected. If pressure goes down too quick, then the regulator is defective. After 5 minutes the pressure should not go below 24 psi. If it does replace the regulator.

If regulator is OK check for leaks at the injectors that can cause fuel pressure drops.To check for injectors leakage clamp off the rubber hose of the pressure gauge tool between fuel rail and the port. If pressure staysr above 24 psi and before was dropping, then a fuel injector or the fuel rail is leaking.

Below a diagram representing the fuel rail and test port. The engines from same years like your six cylinder have the port and rail in the same position.






Regards.

Ginko

is it all wheel drive? It's probably your front drive shaft. Very common.

Pretty simple unbolt and bolt back on operation. One thing though is most rebuilt pumps come with no pulley and you will need a machine shop to transfer yours to the new one. A special tool is necessary to do that so don't attempt it without the tool. If you haven't ever done this work, get a manual such as haynes or chiltons...it will not only help you there but in the future too.
After it's installed, fill the reservoir with power steering fluid and gently turn the steering wheel all the way in one direction (running) and then all the way in the other direction. Re-fill the reservoir and do the same again 'till the air in the system has been purged. Some fluid foaming and slight noise is normal but should disappear after a half hour or so.

check the heater core

reverse switch is located on the transmission usually it has two wires,bridge the wires together if reverse lights come on you have a faulty switch

indicates wind turbulence noise possible around rear view mirrors , weather shields , door edge , bonnet edge , headlights trial and error is to place tape over adjoining edges to see where a placed tape stops the noise

A bad fan clutch sounds like a real loud vacuum cleaner usually when going bad . What does your transmission fluid look and smell like ?

possible a good windscreen fitting operation would take the year of make and vin number back to the shop and come back with the correct screen

possible blown engine gasket!

This video shows you how to do the window regulator on the driver's side of your vehicle. Not much difference on the passenger's side.

look at this link and see if it helps you out. 1999 jeep grand cherokee wont start Google Search

look up how to reset python alarm (model #) for 2004 jeep grand cherkee. there a few steps to it,