Spark knock?
#1
Spark knock?
Alright, i had this prob since the i bought my mustang, When im in 5th gear cursing about 80 mph on the iterstate and when i go to pass someone or when i go to give it a little gas i hear a little knocking, It only does it when im in a low gear. Im told its spark knocking, im running my car plus gas, but when i put premium in it wont make the noise, So how can i fix this prob? new plugs, boots, and coil packs?
#6
detonation is easier to feel than it is to hear (at least for my deaf ***). You'll know it when you suffer it. Feels almost like a car that's missing or running out of gas. I've always felt a definite stumble. The sound is a lot like a diesel which isn't surprising since a diesel's principle of operation is detonation.
You need to have your tune checked. It's possible that the AF is off and 91 octane is only quieting the problem instead of fixing it. Lean AF ratios result high EGT's and that can damage pistons, valve train pieces and catalytic converters.
You need to have your tune checked. It's possible that the AF is off and 91 octane is only quieting the problem instead of fixing it. Lean AF ratios result high EGT's and that can damage pistons, valve train pieces and catalytic converters.
Thread
Thread Starter
Forum
Replies
Last Post
Sir Charles
Modular 4.6L Tech
0
07-29-2007 09:57 PM