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  #1  
Old 02-16-2011, 03:23 PM
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Default car shakes really bad while in idling or park

i just got the car a few months ago and been trying to get the car repaired before i get it registered and sell my old car. I just got the iac replaced and a tuneup which was supposed to take care of the shaking while idling problem but it improved it but it hasnt completely gone away. i was wondering if anyone knows what else could be causing it to do this after a iac replacement and tuneup. thanks for the help in advance.
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  #2  
Old 02-16-2011, 06:07 PM
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How are your engine mounts? If you grab the engine while it is cold and shake it, does it move a lot?
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Old 02-16-2011, 11:59 PM
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the engine is a rebuilt one so maybe they didn't screw everything on right but when i get a chance tommorow i will check this out. how would i know which part of it to replace and how much you think it will cost for parts and labor?
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Old 02-17-2011, 04:01 AM
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You may want to specify the model year, as well as the type of engine (turbo/non-turbo). Different model years seem to use different parts.

http://auto-parts.fcpgroton.com/engine-mount--model-850

Total cost of parts would be around $250-$300, plus labour. Yes, this is a nightmare unless you can do the job by yourself.

Idle speed being lower than normal (normal idle speed for 850 should be 850RPM give or take 50RPM, except in winter when the fast idle function kicks in for the first few minutes) is usually the most common cause of engine shake. When you had the tune-up, did the shop use genuine OEM parts? Volvos don't like being treated with non-OEM parts.

If the engine mounts are ok, I would like to know exactly what items have been replaced during the tune-up.


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Old 02-17-2011, 09:02 AM
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Did you replace the wires ? Are they on the correct cylinders same with distributor cap ? Did they make a go contact so they are not arc in out?
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Old 02-17-2011, 05:19 PM
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sorry for the lack information but its 93 volvo 850 glt
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Old 02-17-2011, 05:33 PM
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Agree it does sound like the engine mounts.
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Old 02-18-2011, 05:44 AM
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I hate it when it comes to the engine mounts. The average life of rubber is approx 5 years. See attached for a nightmare, different year/models use different types of mounts.


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Attached Images
File Type: jpg 850 LowerMounts.jpg (54.4 KB, 30 views)
File Type: jpg 850 Upper Engine Mount.jpg (88.2 KB, 28 views)
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Old 02-18-2011, 11:19 AM
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Quote:
Originally Posted by JPN View Post
different year/models use different types of mounts.
Are those pics for the 93 GLT and/or others?
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Old 02-18-2011, 11:42 AM
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According to several sources, the 5 cylinder motor is one of the smoothest ever made. That being said, I think the car would be pretty smooth with all the motor mounts missing, if the motor wasn't missing. I think it is either missing or has a bad piston or something. Shaking and vibrating is two different things. After checking plugs, wires, etc., check compression.

On the other note, bad mounts, is there a easy way to check the "uncommon mounts"? I have new trans mount, front (right) mount, and upper torque, how do I check the others?
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Old 02-18-2011, 11:42 AM
 
 
 
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850, 94, bad, battery, box, car, dying, engine, glove, idle, idling, light, park, shakes, shaking, shudders, tune, vibrates, volvo


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