2005 lu3 4.3 v6 motor problem with acceleration sputter going up hills wants to cut out I think it's a tbs not shire ?
Problems with lu34.3 v6 motor loss of power up hill idles
fine cruises fine upon acceleration it losses power
If the check engine light is on, have the vehicle scanned for trouble codes. This will tell you what is wrong. If the check engine light is not on, then it could be a fuel issue. Fuel pressure would need to be checked.
I do hear a winding noise when I turn on my vehicular coming from the back the truck could be fuel pump going but not shire check engine light comes on and off I took the side scenor off the tbs and plugged back in it winds back up I'll check the fuel pressure thanks
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