Ok so I'm up here in michigan about 40 mins north Detroit. Me and my dad and my uncle go upnorth for the weekend to ride I'm Cadillac. I'm hauling a single axle trailer 8x8 foot. 2 snowmobiles on it and one in the bed of the truck. All around 1000 pounds I would say extra on the truck. Cadillac has a really hill strech of road and I was going home going up one of the steeper hills and so I kick off cruise doing about 65 at the time. Get going up the hill. My TC unlocks but that's nothing new it always does but then strangely it locked again and I was still giving it the same amount of gas but I wasn't getting any power! I could the engine getting fuel but not alot. Throttle position on the EJWA was at 56% which seemed right. My lift pump an vp44 are almost a year old. Could a old fuel filter cause this? Or the cold because it was -8 air temp one morning. Thanks guys.

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I probably should get that fuel gauge hooked up
Would my trans have anything to do with this? I don't see how it would.
and I do not have any codes. Just low wash on the dash :
Haha

 

check the fuel filter out, my was plugged once to were it would barley run n it wasnt even that old so i didnt think it was bad it was.

 

Fuel pressure can tell you a lot in a situation like this. Try to get that FP hooked up. But definitely check filters.

 

Both pumps aren't even a year old!