98 K1500 issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

allg32 · 12-30-2014, 04:36 PM

OK couple of issues with my truck. It stumbles or misses on hard acceleration will throw P0330 code occasionally. I think this issue is the fuel pump. Checked my pressure and its around 52-55 at idle but only goes up to about 58 when I hammer it, this is just sitting in the garage in park and it will backfire occasionally thru the intake. Timing is good. MAF is good haven't checked TPS yet
The other issue and the one I am more worried about is when I am driving and go to accelerate to pass someone. When I stomp on it it will just rev and not really go like it should. If I just slowly accelerate it will drop down and go but still not like I think it should.

Any ideas?

12-30-2014, 04:36 PM	#1
allg32 Registered User Join Date: Jul 2013 Location: bryant arkansas Posts: 3	98 K1500 issues OK couple of issues with my truck. It stumbles or misses on hard acceleration will throw P0330 code occasionally. I think this issue is the fuel pump. Checked my pressure and its around 52-55 at idle but only goes up to about 58 when I hammer it, this is just sitting in the garage in park and it will backfire occasionally thru the intake. Timing is good. MAF is good haven't checked TPS yet The other issue and the one I am more worried about is when I am driving and go to accelerate to pass someone. When I stomp on it it will just rev and not really go like it should. If I just slowly accelerate it will drop down and go but still not like I think it should. Any ideas?



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