Uneven idle

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HuntTxFishTx

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I just swapped my muffler and took off my resonators. I noticed I have an uneven idle while I’m in park and. I noticed when I turned off cruise control and slowed down to about 40 to 45 my rpm gauge dropped and spiked back up. And when I’m cruising and I try to speed up it starts to make a puttering sound and then quits. When I’m idling to a stop lights my truck slows down quicker. Has anybody experienced this problem? Or know whats wrong?
 
HLram

HLram

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May just be more noticeable now since u put a louder muffler on it. Take ur negative cable off and reset ur trucks computer. That may help it adjust.
 
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HuntTxFishTx

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I did that last night and it didnt help. but my mpg went up to 16 tho
 
SmokedRam

SmokedRam

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How many miles on it? I'd take the throttle body off and give it a good cleaning.
 
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HuntTxFishTx

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about 20,500. what should you clean it with?
 
SmokedRam

SmokedRam

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non-chlorinated brake cleaner. Use anything else and you're liable to mess up the electronics.
 
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HuntTxFishTx

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Alright Thanks. When i take it off is their anything i need to watch out for or damage?
 
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HuntTxFishTx

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What would grounding the throttle body do?
 
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retiredfireman

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I am unsure of the exact science of it, but it works for me and other have done it too.
something about the ground smooths the idle. I used and old piece of 10 gauge wire and grounded it to the air box for my CAI.
 
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HuntTxFishTx

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Should i ground it to my frame or negitive on the battery?
 
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retiredfireman

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I think any metal on the body will do. I am not sure I'd go as far as run it to the battery.
 
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