Question about 2001 Pontiac Bonneville

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My 2001 Bonneville SSEI is shifting hard when the car is warm. I had a transmission fluid change with new filter a few weeks ago and it seemed to start after that. I also had a new thermostat put in at that time. I had a transmission guy scan it and say that I needed a new electronic pressure solenoid. It is about a $800 repair. I have read that there are shift kits for this and that also the thermostat can cause this problem. I don't want to spend $800 if I don't have to.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1861 Answers

SOURCE: bonneville ssei

Fixexpert, Hondachopper, RonaldSuboc, Kevin000, Chad7, please step off, you are ALL WRONG, and your info is 100% USELESS.
If you HAD ANY experience re this issue, you would KNOW THE FOLLOWING:

Kkvesr, What you need to look for, is the main ECU ground point at the LF rocker panel rail; lift the carpet to see this, between the seat and the rocker...there are several wires going to a corrugated "star washer". If you are NOT getting a ground pulse in the RED wire, your main ECU ground, at the wire position described above, may be corroded. if so, no injection.
This is a very common problem, unique to the Bonneville.
Please advise me if this helps, and thanks for choosing FixYa.

Posted on Nov 01, 2008

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StormStrikes
  • 104 Answers

SOURCE: 2000 pintiac bonneveille

Im not a transmission expert, but you can visit GrandPrixForums.net and sign up there. A member on those forums that goes by Trannyman95 is a rebuilder of the 4T65E transmission that your car has and should be able to shed some light on what is going on. He is a super nice guy.

Posted on Dec 30, 2008

rteemon
  • 578 Answers

SOURCE: 2001 Pontiac Bonneville SE; Transmission: will not

internal tranny problem what you did will not solve problem find a tranny speciallist

Posted on Jul 01, 2009

  • 15 Answers

SOURCE: Control arms for 2001 pontiac bonneville ssei

No dont try a salvage yard! www.rockauto.com GREAT prices and SUPER FAST SHIPPING. they have warehouses all over the country! Control Arm for 01 Bonneville $78.79/each includes ball joint and bushings.

Posted on Dec 14, 2009

  • 29 Answers

SOURCE: is a 95 bonneville ssei 3.8 supercharger the same

is it a series 2 or series 1 3800

Posted on Feb 05, 2010

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