Engine noise when accelerating
#1
Engine noise when accelerating
Hi all. I have a 93 Sub K1500. Anytime I press the gas pedal, it makes a knocking sound. I know there are tons of different sounds that an engine can make, but is there one that is more likely to happen only when accelerating? I already replaced the valve lifters and adjusted the valves, and at this point it really doesn't sound like valve rattle. Most of what I've read says to listen with a stethascope(sp?), but that's hard when the sound only occurs with the vehicle moving. O-ya, I guess I should mention that it only occurs when accelerating, under load (so not just reving the engine while in park). I also replaced the EGR (or ERG?) valve, but not the solenoid or MAP sensor. I've adjusted the timing a lot also, with a light.
#3
Thanks for the suggestion. I'll try that when I get it running well enough for a test drive. Will probably be a few weeks as I'm about to start vacation (way too hot here, need to get out of town for a while).
Thread
Thread Starter
Forum
Replies
Last Post
dougd
Silverado & Fullsize Pick-ups
3
March 7th, 2019 7:28 AM
Sparkym300
Tahoe & Suburban
2
March 6th, 2019 9:14 PM
breakyadown89
S-10 & Blazer
13
October 14th, 2009 1:08 AM