Question about GMC Sierra 1500
After I go faster then 35 it goes haywire and goes tot he top of 80mph when I'm not
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Posted on Jan 02, 2017
I have found that when you are going to engauge 4x4 high, it is best to only be going about 3 miles an hour. Not faster, not stopped. It likes some movement to help it mesh. I've had perfect shifts since I started this. Hope it helps. Wade.
Posted on Jan 27, 2009
SOURCE: 1989 gmc sierra 2500 problems
I just had the same problem. My speedometer was jumping up and down randomly, then would die completely...followed by all my other instruments. I thought i had a bad ground and spent hours looking. Soon followed a shifting problem where my it was not auto shifting. I had to manually change from 2-3, with no first gear. I immediately thought ground problem on the tranny. No luck again. Took it to have the codes read, which pointed to all shift solenoids, but i knew that could not be it. I was still set on a bad ground.
Took it to a transmission specialist to see if he had heard of the problem. He took a look and said it was the ignition switch. I though, how the hell does that have anything to do with...instruments....shifting...some many problems. Sure enough, i replaced and it runs like a champ. Hope this helps.
Posted on May 01, 2009
Without taking the tilt mechanism off you can only reach 2 of the 3 bolts. If you use 1/4 in. socket on 1/4 in drive with 6 in extension you can just get at the left bolt. If you remove the tilt spring you can get to the bottom bolt. To remoce tilt spring retainer use standard Phillips.
Posted on Jul 19, 2009
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