Plymouth Sundance - Popular Questions, Answers, Tips & Manuals
Vibration/ shaking at speeds above 90km/h
The problem will be some where between the road wheels and the suspension mounts on the chassis. Here's a check list to try.
-Wheel rims. Balanced doesn't mean straight.
-Loose wheel bolts.
-Brake discs for warping, Pads for wear and calipers for sticky pistons or loose fit
-Hubs and bearings for wear.
-Ball joints for wear.
-Suspension mounts, top and bottom.
-Suspension swing arms at both ends.
Do this for the front AND the rear of the car.
If none of these are the issue you might have to get the drive shafts and transmission checked.
Squealing noise
Sounds like one of your pulleys is bad. Alternator, water pump, don't know till you find it. You say you have more than one belt-try taking one off at a time, run engine for a couple of minutes and see if squealing goes away. Maybe you can isolate it that way.
If belts are off, you could spin each pulley by hand to see if you could catch the one that is bad. Any little wobble or play in any of the pulleys would be very suspect as the likely bad one.
How to replace a fuel pump.
You will have to drain the gas tank (remove battery connection first). There will be a couple of straps or brackets holding the tank in place. Remove those and drop the tank. On the top you will see the fuel pump fastened into the tank on the top side. Remove that, replace with new one and put it back together. You may have to reset the fuel shut off to get it running again.
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