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Bad VP44 vs injectors?

nwilliams
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nwilliams

nwilliams

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Hey guys,

 

My truck has suddenly felt like it has lost a crazy amount of power. It is not as noticeable until the torque converter locks in overdrive and the truck feels like a turd. Also, when the truck is warm and idling in park it has an intermittent miss/popping sound,which goes away when put into gear. This sound has occurred for about 2 years now, so I haven't thought much of it. Would you guys think this would be the injectors finally wearing out or the VP getting ready to die? I have no codes. Shift points have also gotten noticeably longer, as it will ride 3rd gear forever now. I have pressure tested my Airdog 150 and everything comes out as spec since it is the 15 PSI model. I also have a boost gauge and at WOT I can still hit 30 PSI of boost but I still have nowhere near as much power as about a week ago, Which is why I think it could be fuel related.

Edited by nwilliams
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nwilliams

nwilliams

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Thought I made a signature, but I must not have. My truck is a 1998.5 extended cab 4x4 auto with a mechanically stock motor. I do have an Edge Comp and and AirDog 150 along with a cold air intake and 4" exhaust. Transmission is pretty fresh with some upgraded internals. I am monitoring boost from a boost gauge probed to one of the "boost bolt adapters" in the intake manifold. I am getting 30PSI max boost in overdrive, so I am assuming that is what the wastegate has been turned to along with an aftermarket boost elbow. The turbo/chip setup was on the truck when I purchased it, so I do not know for sure.

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nwilliams

nwilliams

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It seems that this issue is not nearly as noticeable when the truck is cold in the mornings. When I drive it a few miles and everything gets warm, then it has a noticeable loss of power. I am starting to wonder if my new alternator has not just caused different symptoms from what I was having?

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