Question about Jeep Grand Cherokee
I had the same problem. It turned out to be the vacuum system that works the controls. the small vacuum lines under the hood dry out and crack causing the vacuum to be lost. also check the vacuum storage canister for cracks or loose hoses. If that does not work it may be the heater/ac control is needing to be replaced.
Posted on May 20, 2011
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Posted on Jan 02, 2017
If the boots on the c/v joints are intact, chances are they are good. Whining noises are generally associated with pump for the power steering. Likely if it's the original it is worn internally. Clicking and popping can be caused by a binding steering or suspension component. These may be separate issues or may be working in tandem to give the symptoms you posted. If the pump is worn and you have a binding condition, it may be difficult for the pump to produce sufficient pressure to overcome that so therefore it will whine. Make sure that the pump is full and the fluid is in good condition. Pumps generally wear out long before they actually have anything break inside but it can happen though so if you isolate the other noises aside from whining to the pump, change it.
Check all moving front end components for signs of binding, rust or excessive play. Pay special attention to the lower ball joints...they bear the most weight and pressure of all the front end parts yet by poor design have no provision for lube service. To check ball joints, place a jack under the axle and once you have some ground clearance put a bar under the tire and attempt to lift it while watching the joints. A small amount of play is normal but it should not be excessive. Also move the wheel assembly from side to side watching the joints and other linkage joints. Do that on both sides.
You should also watch the linkage and bushings while someone turns the steering wheel back and forth while running (in park) on the ground. Again, you are looking for any play (shifting) of bushings and linkage ends. Pay attention to the mount points on the steering box as well when doing that. If the mount bolts are loose or the chassis has split the box will move and make noise.
Though it's impossible to tell you what is causing your problem without the benefit of being there and looking at it, I have given you the best way to find it.
Bottom line is you need to look carefully to find the problem.
Posted on Mar 12, 2010
Testimonial: "thank you very much very descriptive and i will carefully look at everything by detail. thanks again"
Start steps when vehicle is cold. Drain the rad fluid - located passenger side lower bottom of the rad. When draining remove the rad cap (keep your bucket there for complete job). After empty, the tranny lines must be removed, a tool is available for this - from Parts Source or UAP. They join at the bottom of the rad, after removing (don't break the clips or lose them) keep the lines upright to avoid draining the tranny fluid. Undo the 2 bolts holding the fan shroud, slowly and gently push the shroud towards the motor (do not bend the tranny lines attached to the rad). Then lift up and move to the motor. Undo the clamps holding both rad hoses, drain the bottom hose into the bucket. Undo the 8 screws or bolts (10mm ??) holding the top plate that keeps the rad stationary - the hood latch is connected to it, move it towards the front of the vehicle. Pretend you are dismantling a bomb, one wrong move and you will be replacing more than a rad. Lift the rad straight up, watching everything in the way. With the rad on the ground with the tranny lines pointing upright, spray WD40 on the tranny lines and undo them (inspect for any holes). Be smooth when you do it or you will be buying new ones. Start with last step first when you install new rad.
Posted on Jul 01, 2010
SOURCE: 1994 grand jeep cherokee laredo
While that's pretty general, I could make some suggestions-starting from the obvious, it has gas, correct? And I do mean more than 1/4 of a tank. Does it start up and run for a couple of seconds, then just die? Or do you mean that when you drive it, it cuts out? Does it do this when cold? When warm? How long has it been since basic things have been done, like new plugs, plug wires, distributor cap, rotor, oil change, air filter-basic and necessary maintenance. Do you have a check engine light? Your description of the problem is too vague for anyone to remotely have a chance of helping-it sould entail all the things I have listed, and i would throw in a fuel pump, fuel regulator, bad ignition module, poorly functioning electrical system, excessive mileage with poor compression...and I am sure it still could be something else. Try to help us help you, tell us what you really know about the problem.
Posted on Jun 27, 2011
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