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GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2000 Montana: mini van..shifting..transmission fluid......any ideas

Resolved Question:

we have a 2000 Montana mini van...transmission is shifting very hard. transmission fluid is full....any ideas?
Submitted: 5 years ago.
Category: Pontiac
Expert:  GM Tech (Cam) replied 5 years ago.

GM Tech (Cam) :

Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.

GM Tech (Cam) :

There is a common issue in these transmission that results in a whine and the lurch, which is a harsh shifting. It is a sticking pressure control solenoid.. They tend to stick and cause a high pressure which causes the whining. The repair for this is to replace the solenoid. This is behind the side cover of the transmission. The part is 45 or so, but you do need to remove the transmission part way to get the cover off.

Customer:

'k the transmission fluid also looks dirty and there is really no whining involved when shifting just a hard jerk

Customer:

could this still be the solenoid?

GM Tech (Cam) :

yes, high pressure makes the hard shift and it may not be stuck full open then.

GM Tech (Cam) :

What colour is the fluid?

Customer:

brownish red and the transmission was supposed to have been flushed and new fluid and filter put in when we bought it at 43,000 miles we now have 82,000

GM Tech (Cam) :

Oh, the brown is never good.

Customer:

since this is the weekend and I cannot get it into the shop til Monday...is it okay to drive? or will I be sitting beside the road?

GM Tech (Cam) :

drive easily and it should be ok.

Customer:

so are we looking at a new transmission rather than just the solenoid?

GM Tech (Cam) :

brown is burnt clutches so possibly a soft rebuild since you are catching it before total failure.

Customer:

what is meant by soft rebuild

GM Tech (Cam) :

clutches seals, some steels, no hard parts like gears.

GM Tech (Cam) :

This may only be around 1200 then but a full reman from gm is about 2400.

Customer:

any idea of cost of this?

Customer:

thanks...

GM Tech (Cam) :

Is there more I can get you today?

Customer:

would it be better to just get a new transmission rather than have it rebuilt...I have to take my husband to the doctor that is 300 miles away one way once a month..I need something reliable.....

Customer:

?

GM Tech (Cam) :

If it was mine, I would get the reman, 100000 mile warranty and 3 years is a great warranty and they are a quality rebuild.

Customer:

thank you

GM Tech (Cam) :

My pleasure.

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