4l60e tranny

Asked by Jan 25, 2014 at 06:07 PM about the 2003 Chevrolet Tahoe LT 4WD

Question type: Maintenance & Repair

I was driving down the freeway today and my rpms went to 4500 back down to normal and then back to 4500 and back down with in the matter of a few seconds. I went over to the shoulder, as when I hit the gas my truck would not go any faster. I tried to drive to go home but my truck would not move forward or in reverse, the rpms just moved.After getting it towed home we tried and I could drive forward and in reverse. I was wondering if anyone could help me as to what this could be. We checked the fluid and that's good. Thank you

1 Answer

11,465

Ok there is fuild. Need to check to see if it's flowing and if so actually maintaining line pressure to operate the transmission. Once that is confirmed we can move on. The proper way is to tie a gauge into the line pressure test port and observe the pressure in different gears under certian conditions. Most people don't have the gauge or hose required to do this. So lets just check the flow. Clean the fittings and tubing around the cooler lines. Disconnect the top line and slip a piece of small hose over the end and run it down to a small pail or container. Get someone to start the truck and watch the line, there should be fluid coming out. Shut it off after fluid comes out (it should be a steady stream). If no fluid comes out either the lines or cooler are plugged, the pump is not working or the suction filter has plugged or dislodged from the suction port. If fluid comes out the issue will be in the valve body and you will need to test the line pressure. Here is a pic of the line pressure test port.

2 people found this helpful.

Your Answer

Chevrolet Tahoe Experts

  • #1
    John Carson
    Reputation
    980
  • #2
    Tom Demyan
    Reputation
    960
  • #3
    Rowefast
    Reputation
    890
View All

Related Models For Sale

Used GMC Yukon
311 Great Deals out of 19,755 listings starting at $1,400
Used Chevrolet Suburban
382 Great Deals out of 22,381 listings starting at $1,132
Used Cadillac Escalade
209 Great Deals out of 11,975 listings starting at $2,500
Used Chevrolet Silverado 1500
1,781 Great Deals out of 149,286 listings starting at $1,495
Used Ford Expedition
427 Great Deals out of 20,900 listings starting at $1,000
Used Ford Explorer
801 Great Deals out of 64,315 listings starting at $1,000
Used Jeep Grand Cherokee
831 Great Deals out of 75,649 listings starting at $899
Used Dodge Durango
218 Great Deals out of 25,141 listings starting at $800
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Toyota 4Runner
281 Great Deals out of 32,849 listings starting at $950
Used GMC Yukon XL
244 Great Deals out of 12,610 listings starting at $1,995
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Nissan Armada
116 Great Deals out of 9,525 listings starting at $3,200

Used Cars For Sale

2018 Chevrolet Tahoe LT 4WD For Sale
4 Great Deals out of 5,138 listings starting at $44,735
2017 Chevrolet Tahoe LT 4WD For Sale
22 Great Deals out of 1,206 listings starting at $35,995
2016 Chevrolet Tahoe LT 4WD For Sale
349 listings starting at $29,390
2015 Chevrolet Tahoe LT 4WD For Sale
20 Great Deals out of 1,004 listings starting at $25,995
2014 Chevrolet Tahoe LT 4WD For Sale
9 Great Deals out of 193 listings starting at $16,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.