Question about 1999 Pontiac Grand Prix

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There is a whining and the transmission shifts rough. When I took it to a shop they said the right front axle is not seated correctly, they tried to replace it with another axle but there was still a gap. Any ideas?

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My car did the same thing, I had to replace the tranny. The pump was going out in mine.

Posted on Feb 05, 2010

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Posted on Jan 02, 2017

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1 Answer

2003 rear right axle shaft broke would that stop my tranmistion from shifting back and forth?


Having a broken axle shaft will let the diff spin freely, allowing the transmission to spin with no resistance. Resistance/pressure is what causes your transmission to shift. No resistance/pressure means no shifting.

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I have a whining noise coming from my 1999 Mercury Sable. Starts at about 20 MPH and increases getting the loudest around 40-60 mph then holds steady, have shifted to nuetral and whining stays. I believe...


Could be anything connected with the front wheels.
So that includes hub-wheel bearings, axle joints, the differential gears, and the transmission.

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I have a bumping or knocking noise underneath my 1999 Cadillac Eldorado, I hear it especially on bumpy roads,it sounds like it's in the front of the car, what is it?


If the steering and suspension parts are OK, could be a lot of things such as loose parts around the engine (e.g. battery tie-down, bumper cover, etc.).
Unfortunately, if a shift solenoid is an issue, the shop is correct and just the start of problems with the transmission. These transmissions are pretty rugged, but they have to be serviced every 80K miles or so or this will happen.

Apr 06, 2017 | 1999 Cadillac Eldorado

1 Answer

Rough shiftng transmission


I think your gearbox oil is probably a slight bit thin. As the oil warms it gets thinner so It might be ok cold but one warm be to thin. A common practise with hard shift all the time is to thin the oil with ATF maybe this has been done with yours but thinned out to much. Either way you should check the level, color & texture of the oil & if not appear right replace it.

Jun 25, 2012 | 1998 Pontiac Grand Prix

1 Answer

Car has whining noise and rough shifting after the car's been driven for about 20 mins. Aamco recommends a rebuild. I think it's an electrical or sensor problem. Is this a possibility?


Not likely to be an electrical or sensor problem. Make sure the fluid is new, as well as the filter. You may need to replace the drive axle seals (if front wheel drive).

I suggest having the drive axles and seals checked first, and replaced if necessary. This will be cheaper then having the tranny re-built or replaced.

carsandcomps,

Guru, Premium Expert @ Fixya.com

May 20, 2010 | 2001 Buick Century

2 Answers

2000 S10 Blazer Transmission


Check the transmission fluid and see it's condition. Make sure it's at the proper level, the whining noise sounds like the transmission has low line pressure which would be a bad transmission pump. The "klunk" was the line pressure being high and low right now could ba a faulty transmission pressure line servo. Newer automatic transmission designs often use many pressure control solenoids, and sometimes allow the shift solenoids themselves to provide precise pressure control during shifts by romping the solenoid on and off. The shift pressure affects the shift quality (too high a pressure will result in rough shifting; too low a pressure will cause the clutches to overheat) and shift speed. Check the fuse box at the end of the dash on the driver's side and look for the transmission fuse and make sure it's not bad. You can also try resetting the ECM by placing the ignition to the run position and pulling the ECM (BATT) fuse out for 30 seconds and placing it back in and starting the jimmy. It may stall but let it and don't touch anything. Just restart the engine and everything should be like the way it came off the assembly line and hope the transmission come back to life till you can get it to a transmission shop for a proper scan. Good luck and hope this helps. keep me posted, be glad to help.

Jul 01, 2009 | 2000 Chevrolet S-10

1 Answer

2001park avenuestarts to whine/ will shift rough


try doing this change transmision fluild and filter. your transmission mite be going out

Feb 23, 2009 | 1992 Buick Park Avenue

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2007 Ford Focus SE


they probley put grease in with tranny oil to try an silence it try cleaning oil pan out an retop tran oil if no cure u have seriouse box problem

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1 Answer

1987 Prelude weird slip issues.


The axle isn't seated all the way into the transmission.Inside the transmission is the differential,the axle goes into a side gear,called a spider gear,and slips into splines inside the spider gear.Once in to a certain point,there is a retainer clip on the end of the axle that pops out when seated all the way into the spider gear in the trans,and this holds,or retains the axle in the trans.If whoever worked on the car didn't have the axle fully seated to where the clip popped out,then the axle will eventually slide back out of the trans,disengaging the splines,and causing the vehicle to not move.Good luck.

Aug 10, 2008 | 1987 Honda Prelude

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