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Been dealing with non stop headChes with this truck.. Just put new engine in with a new pcm fuel pump. When u normally stomp on a hemi it moves.. Not this truck stomp it from a dead stop it barely moves. Dosnt shift or rev to 5500 rpm like normal hemi does.. Hangs in gears. Fuel pressure is good.. Cats are good. It stalls at lights and on turns... Feels starved or something. Never seen this before it feels like its running at 20% of the power it should have. Barely climb the smallest hills. Any ideas or feed back is much apprciated. This is killin me!
 

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Have you checked the airbox for a blockage?
 

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Been dealing with non stop headChes with this truck.. Just put new engine in with a new pcm fuel pump. When u normally stomp on a hemi it moves.. Not this truck stomp it from a dead stop it barely moves. Dosnt shift or rev to 5500 rpm like normal hemi does.. Hangs in gears. Fuel pressure is good.. Cats are good. It stalls at lights and on turns... Feels starved or something. Never seen this before it feels like its running at 20% of the power it should have. Barely climb the smallest hills. Any ideas or feed back is much apprciated. This is killin me!
Did you have the PCM programmed for your truck using the VIN number?If not that could be your problem.
 

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Any fault codes, 'ck eng' light or ETC dash light on?
Installation of a PCM isn't plug n'play right out of the box. It must be initialized and set up to the truck.
What is the PCM part #? Do you mean brand new or new to the truck? Swapping PCMs is a not good idea.
The Electronic Throttle Control must be learned to the truck with the Starscan/Starmobile factory scan tool, otherwise throttle opening may be reduced.
Stalling could be another problem.
 
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