2000 GMC 1500 transmission question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68c10owner · 09-14-2020, 01:40 AM

Looked at a truck a friend is selling. It was his cousin`s who passed away. I drive it today and 1st gear takes forever to shift into 2nd. Then on the freeway at 65mph I stepped on it and it dropped 2 gears, revved high and went nowhere. The fluid is full, red and not burnt. I think its got a issue but my buddy thinks that maybe since it has a hypercharger his coulsin messed with the shift points. I can get the truck pretty cheap and even if I put a tranny in it its still a good deal but curious what you guys think.

**truckdude239** · 09-14-2020, 01:52 AM

3/4 clutchs are smoked needs a trans

68c10owner · 09-14-2020, 02:38 AM

Quote:

Originally Posted by truckdude239

3/4 clutchs are smoked needs a trans

I figured it did but my friend thinks it has to do with the hypertech programmer. Ive never messed with one of those so not sure how they effect the transmission. It doesnt seem to slip any other time. Thanks for the input

**Palf70Step** · 09-14-2020, 08:02 AM

4l60e trannys are not the best from the factory as far as shifting crisply and responsively. If some one has reprogrammed or tuned the tranny it can greatly improve it or cause issues. I would have a good transmission guy look at it as they are not the cheapest to rebuild redo. They may just find a bad program load and be able to fix it with reprogramming.

09-14-2020, 01:40 AM	#1
68c10owner Registered User Join Date: Oct 2003 Location: Carmichael, California Posts: 3,011	2000 GMC 1500 transmission question Looked at a truck a friend is selling. It was his cousin`s who passed away. I drive it today and 1st gear takes forever to shift into 2nd. Then on the freeway at 65mph I stepped on it and it dropped 2 gears, revved high and went nowhere. The fluid is full, red and not burnt. I think its got a issue but my buddy thinks that maybe since it has a hypercharger his coulsin messed with the shift points. I can get the truck pretty cheap and even if I put a tranny in it its still a good deal but curious what you guys think. __________________ Anthony

09-14-2020, 01:52 AM	#2
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: 2000 GMC 1500 transmission question 3/4 clutchs are smoked needs a trans __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

09-14-2020, 08:02 AM	#4
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,228	Re: 2000 GMC 1500 transmission question 4l60e trannys are not the best from the factory as far as shifting crisply and responsively. If some one has reprogrammed or tuned the tranny it can greatly improve it or cause issues. I would have a good transmission guy look at it as they are not the cheapest to rebuild redo. They may just find a bad program load and be able to fix it with reprogramming. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!



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