94 6.5 Running rough
#1
94 6.5 Running rough
I have a 94 chevrolet dually 6.5, this started yesterday. At first when I started it after work it was idling rough, when I got to the end of the road it would start jumping from 1500-2500 rpms when my foot was off the gas. Then drop to about 1000 when I put my foot on the gas. I shut the truck off and started it back up and went straight to about 6000 rpms and I shut the truck off. I got the truck home and started it avian today and it did the same thing. Any ideas on what the problem could be?
#4
#7
#8
I cleaned the plug and made sure it was plugged in good. Then I tried starting it and wouldn't crank. I checked the codes again and got 13, 16, & 49. I see that 13 is engine shutoff solenoid circuit fault. 16 is vss buffer fault, & 49 is service throttle soon lamp fault. What should I do to resolve these issues?
#10
Thanks for the info. I changed the shutoff solenoid. That didn't work. I'm still getting the high rpms when I start it and then it idles down and jumps high to low. I just don't know what would make it do that.
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Another thing is service throttl light has come on. Could that be my problem with it reving up like that?
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Another thing is service throttl light has come on. Could that be my problem with it reving up like that?
Last edited by WesTex; 01-18-2012 at 07:56 PM. Reason: Automerged Doublepost