Question about 1999 Chevrolet Silverado 1500
Im trying to locate the kickdown switch under my dash, my truck has the 454 w/turbo 400 trans, i looked under the dash, and all i see is where the throttle cable hooks to the pedal linkage, and where the pedal bolts to the floor. i have been told ther is a slide switch for the kick down but cant find it....HELP!!
That was old school , vehicles with the turbo 400 transmission are equipped with an ECM controlled downshift system , when vehicle is at speeds below 70 mph a forced (detent) downshift is possible by fully depressing the accelerator ,when the ECM detects a drop in manifold vacuum (high map sensor reading) the downshift control relay is energized by the ECM , the relay detects battery voltage to the detent solenoid in the transmission to open open an oriface to force the transmission to downshift ..... if yours is not working i would first check the downshift relay , under hood , picture is so bad i can't tell , looks like on the firewall more to the passenger side , next to fuel pump relay , if it needs more diag than that maybe you should get an estimate for repair from a trans shop or such , hope ya fix it , cheers .
Posted on Jan 09, 2009
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.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 28, 2011 | 1995 Chevrolet C/K 2500
Apr 02, 2011 | 1993 Chevrolet C/K 3500
Mar 05, 2011 | 1994 Chevrolet Silverado 2500
Mar 03, 2011 | 2001 Chevrolet Silverado 2500
Aug 04, 2010 | 1995 Chevrolet Silverado 2500
Sep 28, 2009 | 1992 Chevrolet C/K 2500
Mar 27, 2009 | 1988 Chevrolet Silverado 2500
Mar 05, 2009 | 1994 Chevrolet Silverado 2500
Jul 31, 2008 | 1999 Chevrolet Silverado 1500
634 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: