Do i have a bad ignition switch?

1995 GMC SIERRA
260,000 MILES
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BLUEOX
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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?
Jan 13, 2012 at 3:24 AM
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RASMATAZ
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Scan the computer for code/s and also check the transmission
Jan 13, 2012 at 3:39 AM
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RIVERMIKERAT
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That could be. Rent or borrow an OBDI scanner for your truck and see what trouble codes are stored in memory.
Jan 13, 2012 at 3:39 AM
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RIVERMIKERAT
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Grr!
Jan 13, 2012 at 3:39 AM