2007 Uplander LT intermittent problem

Tiny
RFWURFWU
  • MEMBER
  • 2007 CHEVROLET UPLANDER
We bought a 2007 Uplander just less than 2 months ago.
Once a while (at least 6 times in last 2 weeks), when I step on the gas after the van comes to a full stop (stop sign or light), the engine RPM went up but the van only move so slightly (a few times won't even move).
It seems the gear is not engaged. I have to keep step on the gas to make it move. It is a scary feeling if you stuck in a major intersection.
I took it to a GM service center. But they can't find anything wrong using some kind of scanner.
They drove it for a while and it didn't happen to them. All they found is the trans. Fluid level is down a little bit (about 1/4 gallon). So they top it up and that's it.
What is the cause of the problem or they just BS me?
Do you
have the same problem?
Yes
No
Friday, January 5th, 2007 AT 7:43 PM

7 Replies

Tiny
SERVICE WRITER
  • EXPERT
!/4 gallon of trans fluid would cause a slip. 1/4 of a quart however would not. This may be a sticking/failing Torque converter solenoid or other shift solenoid not working properly. Unfortunately they done always set codes when they appear to "Fix" themselves as the computer needs to see repeated failure to set codes

Read the guide below on transmission problems, it will shed some light on what you may be looking for

https://www.2carpros.com/articles/automatic-transmission-problems.
Was this
answer
helpful?
Yes
No
+1
Friday, January 5th, 2007 AT 8:37 PM
Tiny
MONTANA27
  • MEMBER
  • 2008 CHEVROLET UPLANDER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 33,000 MILES
I put 4 to 6 ounces of Dexron III transmission fluid in my 08 Chevy Uplander van to top it off. I didn, t know that it was supposed to be a new Dexron VI fluid. Will this little amount of III hurt my transmission?
Was this
answer
helpful?
Yes
No
Saturday, October 27th, 2018 AT 8:35 AM (Merged)
Tiny
BRIAN 1
  • MEMBER
It shouldn't, this info will be in your owners manual, 2006 And Prior GM Cars and Light Duty Trucks

2006 Hummer

2006 And Prior Saturn Vehicles

2006 And Prior Saab 9-7X

Equipped With A Automatic Transmission or Transaxle

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
The use of Dexron VI in place of Dexron III.

Recommendation/Instructions:
Dexron VI can be used in any proportion in past model vehicle equipped with a automatic transmission/transaxle in place of Dexron III i.E. Topping off the fluid in the event of a repair or fluid change. Dexron VI is also compatible with any former version of Dexron for use in automatic transmissions/transaxles.

Dexron III must not be used in place of Dexron VI in models that specifically call for the use of Dexron VI, fluid and component life will be compromised.

DO NOT use Dexron VI in place of CVT fluid or in any component that does not specifically call for the use of Dexron III (or any former version of Dexron).

Post back with any other questions.
Was this
answer
helpful?
Yes
No
+2
Saturday, October 27th, 2018 AT 8:35 AM (Merged)
Tiny
SAMDOVER
  • MEMBER
  • 2006 CHEVROLET UPLANDER
  • 3.5L
  • 6 CYL
  • FWD
  • AUTOMATIC
When I shift to drive the van doesn't move but when I shift to 1 its starts moving and from there I can shift to 2 then 3 then to drive and it starts to drive. It also shifts to reverse with no problem what could this be. Thank you
Was this
answer
helpful?
Yes
No
Saturday, October 27th, 2018 AT 8:35 AM (Merged)
Tiny
HMAC300
  • EXPERT
Ld be tcm module or valve body problem have a trans guy scan for codes
Was this
answer
helpful?
Yes
No
+1
Saturday, October 27th, 2018 AT 8:35 AM (Merged)
Tiny
EDSEWARD
  • MEMBER
  • 2008 CHEVROLET UPLANDER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
2008 Chevy Uplander 100000 miles.
Replaced trans in 2010 about 15 months ago. Mechanic replaced with used trans again in May 2011. Trans failed after 2 months. This time 1st trans mechanic got had to be sent back, sending another. Supplier refuses to help out on labor/install cost. Mechanic is not happy because they know we are not keen to pay for all this labor after just paying them a couple months ago.
Any advice on how to make this work between Supplier-Mechanic-Customer (us)?
Was this
answer
helpful?
Yes
No
Saturday, October 27th, 2018 AT 8:35 AM (Merged)
Tiny
FACTORYJACK
  • EXPERT
Who's decision was it to get the used transmission in the first place? A lot of the time, the salvage yard will give a small warranty, and that is more than likely for the part alone. They have no knowing of the condition of that part, other than it came from a wreck and may have low miles on it. That and, if they agreed to pay for replacement charges, there would have to be some way that they could get confidence in the person doing the repair. By that, what I am trying to say is this. For instance, the shop gave you the option to go used to keep cost down, and you agreed on the 'good' used part. The reason that you needed a transmission was a catastrophic failure, with that debris was distributed through the system. The mechanic failed to adequately flush the oil cooler of that debris. The 'good' used transmission has now failed, potentially from debris that made it's way from the cooler into the replacement transmission. If you were the salvage yard that sold the transmission, would you feel obligated to pay for labor, knowing that that is a variable? In my experience, used parts are sold at your(or the shops) risk. Now if you were sold a rebuilt transmission from a rebuilder, for them to honor their warranty, there are specific guidelines. In the cases that I have dealt with, I have had to replace the radiator(has the trans cooler in it), and/or the auxiliary cooler, replace fittings if they had a check valve in them, and so on. This was all shown on the original invoice, so if there was a warranty claim to be considered, all of the neccesary documentation was in print. Also in most cases, if they do pay labor, it is at a very low rate, like the supplier would only make up $25.00 of the shops rate of $100 per hour. Unless you the consumer specified that you wanted a used part, it should be between the shop and the supplier. The shops warranty period ought to come into play, you should not have to pay anything, unless of course there is fine print somewhere on the repair order that you signed.
Was this
answer
helpful?
Yes
No
Saturday, October 27th, 2018 AT 8:35 AM (Merged)

Please login or register to post a reply.

Recommended Guides