AboutRay Niemi Expertise ASE Master Rated. Ask any questions about Volvo models up to 2000. Runnability, starting and charging system, diagnostic codes, brakes, front end, where to get certain parts. Should I buy this Volvo or not? I will try to answer your question and give you the knowlege to make the best decision in your case.
Experience I started working on Volvo's in 1978 at the dealer and attended all the schools and achieved a Master rating. Since 1999 I have worked at independent shops and now own my own shop.
Organizations Alldata on line repair manuals. IATN network of techs.
ASE rating of Master.
Question I just paid over $800 to have the rear crank seal replaced because of a small
oil leak in my 1988 Volvo 240DL. Also replaced during the job was a motor
mount and transmission mount. Upon getting the car back, I noticed a
vibration which is very noticeable between 35 and 40mph. Almost like a
grinding sound, but not quite. At other speeds there is a very low sound like
that which would come from a base speaker.
We checked the universal joints and they are fine. I friend of mine mentioned
that it may be the flex disk, but I've not heard of such a thing. What do you
think?
Answer Gary,
Hard to say what is at fault without being able to feel the vibration.
Tires out of balance, bent wheel, u joints, center bearing, drive shaft out of balance. Since it occured after the trans was out I would suspect a driveline vibration. Maybe have the shaft balanced.
I do not think your 240 has a flex disc. You can tell if you have all u joints (3).
