Question about 2002 Chevrolet TrailBlazer

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Why wont my 2002 trailblazer not shift into first or overdrive

Already changed shift solonoids

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6ya6ya
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Posted on Jan 02, 2017

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  • 1311 Answers

SOURCE: The reverse lights wont work,

If bulbs and fuses are good, the remaining thing is the gear selector switch on the transmission.

Posted on Oct 12, 2010

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SOURCE: i have a 2002 trailblazer

Hello irvigiv. Begin by checking your transmission fluid level. If the level is low, it will not shift properly causing the problem you are experiencing. Once you have the correct level [and always err on the side of slightly over filled vs slightly underfilled] it should shift. IF it does not, I recommend that you take it to an AAMCO repair shop if you have one near by. Otherwise any transmission shop since most transmission problems require special tools and special training. Joe

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Posted on Nov 24, 2010

dott40c
  • 46 Answers

SOURCE: changed trans fluid in 2002 chevy blazer and now it wont shift into overdrive properly without hesitation

If it had lots of miles on the trans fluid befor you changed it that fluids additives broke down long ago and wore out most of the fiber material in your trans,,its a problem with alot of gm makes ,unfortunatly you now need to rebuild at least a portion of the trans

Posted on Jul 21, 2012

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2 Answers

Whywontmy2002 trailblzer not shift into first or overdrive trans stays in third and starts off in second already replced shift solonoids


You started at the wrong end. The speed sensor controls the function of those solenoids you just replaced. Did you change the transmission Fluid and filter, it was due at 80,000 miles. Perform an OBDII scan of the stored fault history. let the OBDII scan be your guide to repairs, to avoid buying parts you don't need. Loss of speed sensor signal will result in no torque converter lock up or overdrive as well as no down shift back to 1st.

Apr 11, 2017 | 2002 Chevrolet TrailBlazer

1 Answer

It wont shift into overdrive the transmission has pressure I changed to fluids when I go to pass it wont shift into overdrive


strange as it may sound, transmissions do not shift into overdrive to pass
they down shift a ratio to get extra torque from the motor and will stay down shifted until the vacuum actuator shifts it back and only then when the VSS reports to the TCM that a ratio change up is needed will the overdrive click in
If you cannot get OD under any circumstances run the fault codes and check for a problem overdrive servo/ solenoid , TCM unit

Apr 24, 2016 | 2007 Dodge Ram Truck

1 Answer

The tranny wont shift up in drive from third at about 40 mph the tranny starts to hesitate stutter. already changed oil filter and speed solonoid


just by your description (detailed) id say it could go a few directions ??4 a cause, one way is the 40 mph is near the speed that overdrive is engaged (42 mph) these do sometimes have problems inside them (gears ) also the stutter you mention is sort of an indication that your torque converter didn't lock up or is locking/.unlocking this is an indication of a immanent torque converter failure , if car was made past 2001 then chances are good it has some kind of transmission control system that could log a fault to help you look for a cause like a faulty speed sensor or something , ck your codes !!

Apr 12, 2016 | Cars & Trucks

1 Answer

1997 dodge ram 2500 automatic in limp mode.


goes into limp mode when not functioning properly, could be a control solonoid, check fluid level first, but, the solonoid may be the problem

Mar 06, 2013 | Dodge Ram 2500 Cars & Trucks

1 Answer

Changed trans fluid in 2002 chevy blazer and now it wont shift into overdrive properly without hesitation


If it had lots of miles on the trans fluid befor you changed it that fluids additives broke down long ago and wore out most of the fiber material in your trans,,its a problem with alot of gm makes ,unfortunatly you now need to rebuild at least a portion of the trans

Jul 21, 2012 | 2002 Chevrolet Blazer

2 Answers

Shifting


Is your code reader capable of reading U, C, and B codes? The speedometer doesn't get it's speed reading from the wheel sensors. It gets it from the transmission. Not shifting past 2nd gear means your transmission is in "limp in" mode. It prevents shifting to avoid further damage. I see a transmission repair shop in your future.

Oct 28, 2017 | 2002 Chevrolet TrailBlazer

2 Answers

My 2002 trailblazer is making a noise when I go over 45 mph and appears to not be going in gear quickly at that speed


Check your transmission fluid level and/or have the fluid changed. If problem persist have a transmission professional at a dealership or transmission shop service it.

Sep 14, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

My 95 olds cutlass v6 3.1L sometimes wont shift out of third gear and it just completely shut off on the thruway... what does this mean?


Its possibly a bad shift solonoid on the trans itself. These trannys' 4T60E have 3 solonoids for shifting 1 for 1st and 2nd, 1 for 2nd to 3rd, and 1 for 3rd to overdrive. Its quite possible that the valve is sticking in the valve body. This can be a somewhat difficult job to do. But the solonoids arent that expensive. I would suggest a trans fluid flush and a new screen/filter and see if that helps. If you take it to a dealer the solonoid/s replacement will be around $800 or more.

Jul 22, 2009 | 1995 Oldsmobile Cutlass Supreme

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