1991 c1500 idling issues

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jrmbrown93

OBS Enthusiast
Joined
Jul 3, 2014
Messages
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Hey I have a 1991 c1500 that is idling wierd when u put it in drive it wants to idle up and I've noticed I can turn the neutral safety switch and it will idle up also if I push on the tps sensor it will idle up then go back down any help please
 
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