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- - Power Loss (https://67-72chevytrucks.com/vboard/showthread.php?t=589530)

bluec10

07-21-2013 04:15 PM

Power Loss

My 2006 Sierra w. 4.8 is suddenly using power. At highway speed the truck will suddenly lose power - the tach will drop to zero then quickly bounce back up again. This only happens when the truck has been driven for a while. It often does this several times in a row, creating kind of a stuttering. At first this only happened at high RPM but now it happens across the range.

Any ideas?
Posted via Mobile Device

truckdude239

07-22-2013 03:05 PM

Re: Power Loss

check engine light on?

bluec10

07-22-2013 05:46 PM

Re: Power Loss

The check engine light isn't on. Strange.

bluec10

07-22-2013 06:37 PM

Re: Power Loss

Any ideas?
Posted via Mobile Device

truckdude239

07-22-2013 07:22 PM

Re: Power Loss

Possible fuel pump dieing
Posted via Mobile Device

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