2004 Pontiac Grand Prix CV axle

NOT A CAR EXPERT

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2004 PONTIAC GRAND PRIX
3.8L
6 CYL
FWD
AUTOMATIC
160,000 MILES

Noise: grinding and whining. When: anytime driving over 15 mph. Front right tire turning slight right noise quiets or goes away. Driving straight sounds horrible. Turning left slightly sound worse. I took the tire off the router and break bracket. Put it in drive with just that tire and everything off located the noise at the cv axel where it inserts into what I been told is the transmission. I hear the noise in the driver seat more than I do with my head in the wheel well. Need to know where to start at. Don't have much money to replace each thing one at a time.

4 Replies

MHPAUTOS

MECHANIC
31,938 POSTS

It sounds as if your problem is in the differential, problem is it is part of the transmission and very specialist equipment and knowledge is required to do any major repairs in this area, I would get a mechanic to listen to this noise and confirm the diagnosis, if this is the case the cheapest option would probably be a second hand transmission.

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Sunday, November 1st, 2015 AT 11:42 PM

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Is there any test that I could do to find out if it's the cv or the differential.

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Monday, November 2nd, 2015 AT 11:52 AM

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Is the differential oil the same as transmitting fluid. How do I check that

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Monday, November 2nd, 2015 AT 11:54 AM

MHPAUTOS

MECHANIC
31,938 POSTS

You will have to remove and dismantle the cv to see if there is any damage, as for the trans oil, the diff is combined with the trans and the oil level is checked with a plug on the side of the trans, there is a red filler plug on top of the transmission, fill the trans till oil starts to dribble from the side level plug.

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Tuesday, November 3rd, 2015 AT 11:58 PM