Knock on hard accel when rolling

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Nov 23, 2006 | 05:06 PM

4DOORSR

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Joined: Jul 2006

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From: Ottawa, Canada

Knock on hard accel when rolling

I rarely stomp the gas in my truck, but today I did while frustrated and noticed when I did it knocked right before it took off. I thought maybe it was a mishap and tried again rolling from 30-40km/hr and stomping it and it does it every time. I'm not too worried about it as I said I very rarely put it to the floor. Anyone happen to notice the same thing? I'll swap out the plugs for new ones and hope I got a bad tank of gas for now.

Josh

Nov 23, 2006 | 08:55 PM

Chris1450

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From: buckley WA

discribe the knock. Spark knock? a metal to metal knock?

Nov 24, 2006 | 07:16 AM

4DOORSR

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From: Ottawa, Canada

Yes like a spark knock. Sounds like an old v8 with real bad timing. Only from a roll tho....If I'm accelerating at a steady pace and then floor it it doesn't do it. Just wanted to know if anyone's experienced a simular problem. I've got almost 60k miles on these plugs.

Nov 24, 2006 | 08:14 AM

rodneys123

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I have an 04 that does what you just described. Also, It will randomly knock at times under acceleration, hills, etc. It almost seems random. Sometimes it's just fine.