Question about 1997 GMC Safari

Open Question

No downshift 4L60E after normal temperature

1997 GMC safari wont downshift after adding 1qt of oil, upshift work fine but downshifting problems start after about 10mins of driving what solenoids i change and how can i identify them or if there is any other part i should check for..the oil looks in really good condition no metal particles in oil I also had it scanned and it said solenoid 3-2 short circuit error... I really need some help. I had had changed that solenoid but not sure if i changed the right one since it has another the same. thanks in advance for ur help..guys!!!

Posted by on

  • Luis Alberto
    Luis Alberto May 15, 2009

    I solved the problem of my gmc, I replacerd solenoids 3-2 downshift, tcc and 1-2 and 2-3. Now I'm a happy camper..thanks to u guys..!!! Sincerely: Luis "rockcrater"

    PS: I spent about $75 not to bad so i saved alot I can imagen what whould it cost me if i had paid to fix it..maybe i would of been ripped off..

    thanks once again..!!

×

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
Mikey108
  • 475 Answers

SOURCE: My 1989 Jeep with AW4 transmission does not downshift or ?

This model has a tranny computor under the dash on the right side screwed to the bottom of the dash. If I remember correctly, there is also an inline fuse attached to the harness. Check the fuse.

Posted on Feb 12, 2009

Ad
  • 154 Answers

SOURCE: 2001 chysler T&C downshifting

It must be seeing a fault coming out of 4th gear. The downshift is "Limp In" mode. That is about when the Clutch Volumn is recalculated. It may be having OverDrive issues (which is internal) You need to have a diagnostic done with a scanner. Find out which fault is occuring and then go from there. There may even be updates for the TCM. Let me know how that goes?

Posted on Apr 03, 2009

fastboyz
  • 674 Answers

SOURCE: 1997 Gmc Yukon wont start

when you say it wont start will the engine turn over?
if it wont turn over i think you should check your battery connections
if the engine turns over then you need to check your fuel pressure and spark and let me lknow

Posted on Jan 02, 2009

  • 11 Answers

SOURCE: 01 GMC 2500HD 8.1 wont downshift while trying to accelerate

check with dealer i had the same truck and as i remember there was a recall on them having to do with the shift indicator or something

Posted on Feb 06, 2009

  • 1118 Answers

SOURCE: 95 GMC Jimmy 4L60E no 2nd or OD 4L60E

You might want to try this if its got a kick down cable unhook it from throutle body and pull it out as far as you can and let it snap back, do this a few of times, sometimes a valve gets hung up inside valve body of trans. and won't let it shift. If that don't help you may have to pull pan to dislodge it if thats the problem. chk. the plug on trans. (Its a 4 wire white plug) with test light with key on to see if there is power down there one will be hot, thats for overdrive, now on top of intake in front throutle body there is a sending unit that looks like a temp. sending unit with a 2 wire plug on it that sends a signial down to that plug when engine gets to temp. to let it shift to overdrive. Maybe this will help, or give you some ideas.

Posted on Mar 02, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My autostick chysler 300M will not manually downshift


That may be a safety feature, Ron - it SHOULD refuse to downshift if downshifting would cause excessively high engine RPMs.

Aug 13, 2014 | 2000 Chrysler 300M

1 Answer

My 99 jimmy with a 4L60E, on a downshift (kickdown) at highway speed or any speed really when downshift by pressing down the accelarator or downshifting by hand the tansmission feels like it's in neutral,...


First off there may be nothing wrong. At highway speed, the trans will shift down to 1st, but you won't feel it. If should feel like neutral. Does it shift normally when your "wide open throttle" from standstill? If it shifts properly in this situation, then your fine, don't worry. How about wide open throttle at say 25mph? how about 35 and 45? anything over that and its gonna feel like neutral. IF your convinced that your passing gear is not working right, it could mean that its out of adjustment, and needs a little more push, more throw, or kinda like adjusting the rod out a little bit further. Adjust your "passing gear linkage" or kickdown as you imply. Second guess would be low on transmisison fluid, filter, and last, the transmissoin control selonoid. Again I suggest its doing just fine, if it shifts down at any speed.

Dec 16, 2013 | 1999 GMC Jimmy

1 Answer

1989 pathfinder transmission 3spd w/ overdrive works great when first started, then downshifting starts way early, started after alternater wentbad


Do you mean upshifting starts way early? Going from 2nd to 3rd in other words?
Ireally don't know your transmission,but the alternator problem might've possibly spiked and hurt your shifting solenoids in the ******. don-ohio (:^)

Nov 14, 2011 | 1989 Nissan Pathfinder

1 Answer

L480E shifts out of overdrive but will not return to overdrive until you restart the truck. I have a 2000 old body style chevy 2500 5.7 L480E. Truck runs great and shifts fine. !60,000 miles on it. Can...


The overdrive disengages when road speed drops below the threshold. Normally, when you speed up above the threshold you should be able to simply reengage overdrive. You may have a faulty speed sensor preventing that.

Mar 15, 2017 | Chevrolet 2500 Cars & Trucks

1 Answer

HARD DOWNSHIFT ON 2000 DODGE GRAND CARAVAN 3.8 L RECENTLY ADDED FLUID HAD A SMALL LEAK SHIFTS SMOTH ON THE UPSHIFT


hard downshift on that tranny ? means either your downshift cable is out of adjustment? or the shift solenoid shift pack has a faulty solenoid and or sticking servo valve or loss of voltage

Jan 21, 2010 | 2000 Dodge Caravan

1 Answer

95 geo manual tranny have had problem down shifting to 1st gear for couple months now 2nd is getting hard to downshift and upshift have replaced rubber bushings bolts etc.on shift linkage adjusted etc.


Sounds like your synchronization rings inside the tranny are wearing out try changing the transmission oil and adding product like lucas oil treatment , if it helps lay off the downshifting until your ground speed matches your engine speed for the gear your ring to go in. like really slow speeds ...

Jun 12, 2009 | 1995 Geo Metro

1 Answer

Transmission problems on 1997 camaro V6


you might want to start by taking it to autozone and see if you have any computer codes stored

Mar 22, 2009 | 1997 Chevrolet Camaro

1 Answer

Automatic trans downshifting


You need to have the TPS checked, this will cause the kind of erratic shifting issue you have.

Oct 18, 2008 | 1995 Honda Accord

Not finding what you are looking for?
1997 GMC Safari Logo

Related Topics:

235 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...