on my 1999 chevrolet silverado 4 x 4 5.7L truck my transmission does not sift properly and no lights are on. the transmission fluid is clear. It is a new transmission in the truck. the 4wd is not hooked up. What could be wrong?

Asked by GuruLLTMS Apr 07, 2019 at 11:56 AM about the 1999 Chevrolet C/K 1500 LS Extended Cab 4WD

Question type: Maintenance & Repair

on my 1999 chevrolet silverado 4 x 4 5.7L truck my transmission does not sift
properly and no lights are on.  the transmission fluid is clear.  It is a new
transmission in the truck.  the 4wd is not hooked up. What could be wrong?

3 Answers

it is not a new one. it was put in by an individual.

70

If it not going in gear it's the transmission but if it not going in 4 wdr it is the actuator in your transfer case front axle outside or in the rear of front or back axle. If your transmission not changing gearyou have bad transmission.

If it is a used transmission and the fluid was changed to make it look clean there could be still something wrong with the Transmission. By changing the fluid you take the only dirt out of the Valve body that was keeping the valves sealed so the pressure isn't good enough to keep it compressing the clutches. If fluid is squeezing past the valves and not building pressure than the clutches will burn. I have changed the fluid in a used 4L60 and added STP engine oil treatment to thicken up the fluid and increase the pressures in the valve body and other parts of the warren out parts of the transmission. I have been driving that truck for 9 years and am still driving it and it is a heavy 92 Suburban. There is rebuild kits and mods that can be done to help with the pressures but they have to be done before the clutches are burnt out, if not then rebuilding is the next step. I always try the STP first because for 6 bucks its a cheap fix and if it doesn't work the tranny would be a rebuild anyways weather you try it or not.

Your Answer:

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 6 nationwide C/K 1500 listings and the tools to find you a great deal.

Postal Code:

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    11,250
  • #2
    Rowefast
    Reputation
    6,740
  • #3
    John Saffrahn
    Reputation
    4,920
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
69 Great Deals out of 4,200 listings starting at $4,995
Used GMC Sierra 1500
55 Great Deals out of 3,502 listings starting at $4,595
Used Ford F-150
111 Great Deals out of 7,255 listings starting at $3,990
Used Chevrolet Silverado 2500HD
14 Great Deals out of 1,112 listings starting at $5,495
Used Dodge RAM 1500
5 Great Deals out of 186 listings starting at $3,895
Used Chevrolet Tahoe
7 Great Deals out of 313 listings starting at $2,500
Used Toyota Tacoma
17 Great Deals out of 548 listings starting at $5,995
Used Chevrolet Camaro
10 Great Deals out of 420 listings starting at $4,999
Used Chevrolet S-10
4 listings

Used Cars for Sale

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. Content will be removed if CarGurus becomes aware that it violates our policies.