Mechanics

DO I HAVE A BAD IGNITION SWITCH?

1995 GMC Sierra • 260,000 miles

Once in awhile, maybe a couple times a year, when I start my 95 GMC truck everything seems to be ok. It reverses just fine, when I put it in drive it seems to labor like dragging front brakes. Then I notice the tach & shift indicator are not working. Usually I would shift back to park, shut off truck & start over again. If the tach worked then I knew it would drive as normal. If it didn't work I would try again. There was no pattern as to when it would do this. The other day it did this & won't come out of it. I was told maybe the truck is not sensing any rpm's and trying to start out in a higher gear?


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Blueox
January 13, 2012.



Scan the computer for code/s and also check the transmission

Rasmataz
Jan 13, 2012.
That could be. Rent or borrow an OBDI scanner for your truck and see what trouble codes are stored in memory.

Rivermikerat
Jan 13, 2012.
Grr!

Rivermikerat
Jan 13, 2012.