1997 Dodge Caravan A/C pump vibrates = very noisey
My Caravan A/C pump has been vibrating for some time now, I have tightened the bolt which attaches it to the engine block, but then today I looked for the noise problem and the bolt was sitting there just lose. After investigating, I saw that the bolt was broken.
Now I do not know if this bolt screws into the engine block or not as the pump support bracket has threads in it, hum.
Can someone please help me with this, do I need to remove a broken bolt or what.
I am sick of Dodge problems.
johnny in st.marys, on
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It's hard to come up with a solution for this one without actually "feeling" the symptoms. I assume that what you're describing is that you can feel vibration coming from the engine. I suggest that you have the engine mounts checked.
Also, make sure the mount that sits just behind the radiator has rubber in the middle of it where the bolt goes through. On some models, the rubber mount is attached to the frame (which attaches to a bracket on the engine). On other models, the rubber part is attached to the engine (which attaches to a bracket on the frame).
I've seen cases where the mechanic had a bracket on the engine and another bracket on the frame. Instead of the mechanic removing one of the brackets and replacing it with the rubber mount, they would just align the two brackets together and run the bolt through them.
This causes the vibration to be transferred directly from the engine to the frame. This will also put stress on the exhaust pipe causing it to eventually break because the engine is not seated properly. The engine will be tilted slightly to the rear...
If your mechanic is a good mechanic you should be able to take it back into that mechanic and have them recheck their work at no additional cost. There are many bolts holding on the: Power Steering Pump, Alternator, Water Pump, Belt Tensioner, Crankshaft Pulley and Idle Pulley. Many of these have to be removed inorder to replace the Timing Chain Cover Gasket. It they were not tightened down correctly, this could be the vibration you are describing. Also the Front (right side) Motor Mount had to be loosened to gain access. If this was not tightened down correctly, it could cause vibration.
The Power Steering Pump itself not only has mounting bolts, but also the retaining bolts on the pulley. Again if these were not tightened down correctly, it could cause the pulley to vibrate.
Talk to the mechanic (again if you have to) and work it out with them. Most good mechanic will help you.
But to answer your question directly: Yes there is a very good possibility that this has something to do with the Timing Gasket Cover Gasket work.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at
Hi. I would Check the lower ball joints on the front-end. You
will find that they could be loose and the cause of your vibration problem. I would also Check the U-joints as you may have one that is worn
and gets out of alignment while coasting. also, a bad or malfunctioning power steering pump can also cause this type of disruption as well but, its quite noticeablebecause of the whining sound it will imitate. you will find the problem in one or both of the areas discussed.
OK, disconnect neg battery cable, drain cooling system, remove splash shield under right front fender for easy access to water pump bolts, loosen clamps and disconnect hoses from pump, remove drive belt, remove water pump pulley bolts, remove pulley (tip: loosen bolts on pulley before removing belt), remove water pump bolts (5) , separate from the front cover, clean the bolt threads and the threaded holes in the front cover to remove any corrosion and sealant, remove and discard o ring and clean mating surfaces, careful not to gouge or scratch mating surfaces, install new o ring into the groove, install the pump to the front cover and tighten to 105 INCH pounds, pulley bolts are 21 FOOT pounds.Good Luck! countrycurt0