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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1685
Experience:  GM Grand Master Technician 2007. 14 year experience.
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2003 gmc 3500 dump body loss of power on acceleration only

Customer Question

2003 gmc 3500 dump body loss of power on acceleration only code p0332 knock sensor
JA: How old is the transmission? Have you checked the fuel filters?
Customer: trans was check by trans mechanic fuel filter was clogged replaced fuel pressure good 60 lbs
JA: What is the model of your '03 GMC?
Customer: 3500 dump 6.0 liter
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: remove 2 front 02 sensor cat not the problem no improvement with sensors out/exhaust is srong
JA: Anything else you think the mechanic should know?
Customer: plugs and wires replaced no misfires/mass air flow sensor replaced readings ok/could this ad knock sensor cause power loss/timing is still advancing no retard
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the GMC Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: GMC
Expert:  Kavey replied 1 year ago.

Hello. My name is ***** ***** I will be helping you today.

Yes it usually is a bad knock sensor. You got a multimeter?