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Chevy Colorado and GMC Canyon Transmission Problems

63 messages,  Last post on Apr 01, 2013 at 2:42 PM

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What is this discussion about? Chevrolet Colorado, GMC Canyon, Transmission, Truck

Messages Page 4 of 7

#30 of 63 2004 Colorado error code P0756 by gumbta2

May 24, 2010 (6:42 am)

I have a 2004 Chevy Colorado 5cyl 4WD with 110K miles and 2 weeks back noticed a small tranny fluid leak, not bad as I added a quart and still OK 2 weeks later. After washing may car I took it out and after about 2 minutes of running came to a stop light, when I started up I noticed a lack of power, almost like parking break was on but it wasn't. I could only get up to about 15 MPH and didn't noticed the RPM's up so first thought catalytic converter, OH YEAH, check engine light came on when tis all happened. I let it sit for a couple hours and now seems to be OK. I read the engine code and it was P0756 and what I could find on internet relates to tranny, possible shift solenoid. It's been fine since but reluctant to drive any distance. No slippage and shifting fine. From what I can tell the leak is from the pan gasket so that will be replaced. Anybody had a similar issue? Is the P0756 tranny related?

#31 of 63 Re: 2004 Colorado error code P0756 [gumbta2] by fenix12

Jun 12, 2010 (8:00 am)

Replying to: gumbta2 (May 24, 2010 6:42 am)
hello i got the same code just recently and my colorado is a 2005 5cyl 4wd with 112k mile and it just happen to me on a trip that caused me to turn around wich was a nightmare coming back home epecially on the hwy...but code p0756 is your transmission solenoid ( T.C.C. ) because my check engine light came on the process and after i got back in town it started shifting fine but theres a loss of power beacuse i can stilll feel it as it goes up the hill it will take time to reach 70 mph... but other than that it shifts fine the transmission control solenoid is no more than 40 bucks at a autoparts store but its vendor direct...but good luck ...

#32 of 63 Re: 2004 Colorado error code P0756 [fenix12] by gumbta2

Jun 14, 2010 (7:10 am)

Replying to: fenix12 (Jun 12, 2010 8:00 am)
Thanks for the info...Was it the 3-2 solenoid? What I've been able to find is that there are 4 solenoids, 1-2, 2-3, 3-4 and 3-2. I had the tranny pan off and saw several but have not been able to determine which one is which. Also, the code chart notes it as the "B" solenoid but the part stores I have spoke to don't go by that. Since I cleared the code it has not come back on and seems to be shifting OK so don't know what to do, leave it alone or start replacing solenoids. I found then on line at RockAuto.com for about $15 to $25 depending on which one. According to ACDelco the solenoids for shifting 1 to 4 (3) are the same part and the 3-2 is different. When you had yours relaced did they notate the part#, and was it ACDelco.

#33 of 63 Re: 2004 Colorado error code P0756 [gumbta2] by fenix12

Jun 14, 2010 (4:28 pm)

Replying to: gumbta2 (Jun 14, 2010 7:10 am)
Well they didn't do that because they found out it was the cat that got clogged up and its making my muffler rattle bad now but am gonna go get my truck hopefully this weekend and take it to a transmission shop were they can pull the codes out because am still with the solenoid and solenoid b is the one i got two but so far i haven't looked myself and thats a real good price on the those solenoids normally auto zone only has them for 43 dollars but price may differ on states.. but i will let you know on that solenoid when i get an answer....

#34 of 63 Re: 2004 Colorado error code P0756 [fenix12] by gumbta2

Jun 15, 2010 (6:02 am)

Replying to: fenix12 (Jun 14, 2010 4:28 pm)
Keep me posted. I thought clogged cat at first but when I read the code that pointed me to solenoid. Good luck and hopefully isn't to costly. Suggestion, if you have the tranny pan off braze in a drain plug, makes for easy removal next time.

#35 of 63 2006 chevy colorado by foldem

Aug 19, 2010 (6:07 pm)

I have a 2006 chevy colorado my auto trans, keeps giving me problems in first gear always slips... starter at 20,000 miles took it to the chevy dealer was told no codes. Took it back again at 25,000 miles same problem and was told again we cant find anything wrong with the truck. well now it's out of warranty and IT STILL IS DOING IT called gmc and they told me I had to pay to have the trans taking apart to find out what's wrong I told them this is there fault because it was not done right in the first place while it was under warrenty, why should I have to pay THATS ALL THEY COULD SORRY NO CODES NO PROBLEMS BULL.... Now I have 78,000 miles THEY JUST DON'T CARE I WILL NEVER BUY A GM MODEL AGAIN......THEY SUCK.

#36 of 63 Re: 2006 chevy colorado [foldem] by gmcustsvc

Aug 20, 2010 (6:56 am)

Replying to: foldem (Aug 19, 2010 6:07 pm)
Hello Foldem,
I apologize that you are still having concerns with your vehicle. Do you currently have a case open if so what was the case number? Have you ever taken the vehicle to a different dealership for a second opinion? Thank you,
Mariah GM Customer Service

#37 of 63 2007 I-4 5 spd noises backing up by silkydraws

Sep 27, 2010 (7:50 pm)

Along with a clogged cat, bad ABS brain and really crappy running condition, now the truck makes a horrendous noise backing up. A loud clacking sound like someone has a hose clamp around the driveshaft hitting the floor board (remember that trick? With tie wraps?) I believe it's the input bearing going out. Already had a complete new clutch kit which did nothing. Hunk of junk I tell 'ya. All this at 65K miles. Never buy one of these money pits!!!!!!!!!!!!!

#38 of 63 Re: Automatic transmission only shifts through the gears if you start in 1st? [molder1979] by mishadetree

Oct 11, 2010 (2:57 am)

Replying to: molder1979 (Oct 17, 2009 4:57 pm)
I own a 2006 3.5L-2wd that I bought brand new & just experienced the same problem. The night before I was going from rev to drive & it made a loud shudder clunk. But it sounded like from the rear end. Then it acted like I wasnt getting proper torque/power. Gas peddle was even mushy & somewhat unresponsive w/no change in RPM(slippage). Then abt 2 miles down the road it all straightened out?? Now today I get in & have no 3rd & 4th but will move in 1st, 2nd, & rev. Have not taken it out on the road yet. Worried it wont make it back??
 
What all did you find out & do to correct your prob?

#39 of 63 Re: Automatic transmission only shifts through the gears if you start in 1st? [mishadetree] by gumbta2

Oct 11, 2010 (6:49 am)

Replying to: mishadetree (Oct 11, 2010 2:57 am)
Did you get a check engine light? When I had this problem it had a code relating to shift solenoid B bad. I have not had the problem since it happened the one time but since I was overdue on a tranny service I did that. Maybe I'm paranoid but I don't think the tranny is shifting quite right but don't know for sure. I found the ACDelco solenoids on Rockauto.com and theya re not expensive but have to drop the pan to replace. If I have further problems that's my next action. NOTE: they don't list the solenoids as A, B etc., they list them as 1st to 2nd, 2nd to 3rd and so on go up then in reverse for down shift. When I called RockAuto they got ACDelco on the phone and i believe 5 in total are required if you replace all of them. Let me know the outcome....GOOD LUCK

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