Question about 1998 GMC Sierra

Open Question

4L60E KICKING IN AND OUT OF OVERDRIVE

SHIFTS FINE THROUGH ALL GEARS GOING DOWN ROAD 45 MPH AND ABOVE WILL START TO KICK IN AND OUT OF OVER DRIVE. WHEN STARTS TO DO THAT I CAN LET UP ON THROTTLE A HAIR AND IT WILL STAY IN OVER DRIVE FOR A MIN. HAVE REPLACED TCC SHIFT SOLENOIDS TPS(GUY AT WOULD SAID THAT FIXED HIS DOING THE SAME THING). AT TIMES IT ALSO DOES A JERK IN OD LIKE IF YOU HIT THE BRAKES HARD ENOUGH TO GRAB BUT LET OFF RIGHT AWAY.

Posted by on

  • abrown2085
    abrown2085 Jan 17, 2013

    MARY: MY FLUID IS GOOD, VTRKTRMN: I DO NOT HAVE A TOW/HAUL SWITCH ON MY TRUCK

  • abrown2085
    abrown2085 Jan 17, 2013

    CCN7 MY TRUCK SHIFTS INTO OD WHEN COLD AND RUNS FINE LIKE THAT BUT WHEN WARM UP IT WILL SHIFT INTO OD AND THEN SHIFT OUT OF OD

×

4 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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

  • 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

  • 194 Answers

SOURCE: Had Tranny rebuilt,Shift solenoids replaced. Still

first check the detent cable from the trans to the accelorator is is out of adjustment. move the adjuster (((( one ))))) click at a time. mark where it is first then go in the same direction if it gets better keep going till it's right if it gets worse then start at the original spot and go the other direction.you won't need to go too many clicks.let me know

Posted on Nov 20, 2009

  • 37 Answers

SOURCE: 95 GMC Sierra 4L60E will not shift down to 1st or up to 4th.

no power stuck in 3rd gear electric shop unless youve burnt it up good luck...www.TransmissionGarage.com

Posted on Dec 30, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2004 acura rl - overdrive not engaging


Check for speed sensor failing. There may be more than one.

Jan 28, 2014 | Acura Cars & Trucks

1 Answer

How many times does a transmission supposed to shift starting from drive in a 1988 dodge ram with a 318 motor


Depends if you have a regular 3 speed automatic, or a 3 speed with overdrive.
Put it in drive, it will start out in first gear, then shift into second at about 15 MPH, into third at about 30-35 MPH. With overdrive, fourth gear will kick in at about 45-55MPH.

Oct 07, 2013 | Cars & Trucks

2 Answers

Jeep cherokee jerks when shift into overdrive going 45 mph


If the engine has a rough idle you know you have a miss-fire or other problem with one or more cylinders.
When you shift into overdrive the engine is working harder than in normal drive because of the lower torque/RPM.
So any slight miss under normal conditions will be magnified in overdrive or with the ac on.
See if you can nail down the cause for the rough idle.

Jul 19, 2012 | Jeep Cars & Trucks

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

I have a 1994 Olsmoblie Cutless Supreme LS, 3.1L V6 , front wheel drive, with 3 speed Torque Converter Lock-out type overdrive transmission. The car drives cold or hot fine until It goes up a hill or can...


First thing,

lets start with a transmission flush and filter change. then have you checked any of your vacume lines. A bad vacume line is the number one thing that causes any form of transmission mis shifting. When it gets warmed up the lines alow cracks to open up and mess up the function of the vacume line. Also you need to have the torque converter checked. You also need to have a computer scan on the vehicle. a bad sensor or coputer could cause any of these problems.

let me know what happens when you check these out.

Jun 09, 2009 | 1994 Oldsmobile Cutlass Supreme

1 Answer

1992 Thunderbird with 25K miles. At 45 mph, when it


THE BAND COULD BE BURND OR THE SERVO PISTON THAT APPLIES THE BAND MAY BE CRACKED/BROKEN OR BAD O-RING ON PISTON

Apr 04, 2009 | 1992 Ford Thunderbird

2 Answers

95 GMC Sierra 4L60E will not shift down to 1st or up to 4th.


no power stuck in 3rd gear electric shop unless youve burnt it up good luck...www.TransmissionGarage.com

Jan 28, 2009 | 1995 GMC Sierra

2 Answers

Transmission problem


car out of cruise control flutters or runs rough from 45 mph to 55 mph and once over 55 mph runs smooth. I notice from 45 to 55 the rpm guage moves with flutter or rough running engine. when i put in cruise control it smooths out.

Sep 12, 2008 | 2000 Chevrolet Blazer

Not finding what you are looking for?
1998 GMC Sierra Logo

Related Topics:

125 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

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

Answer questions

Manuals & User Guides

Loading...