Knock sensor or dealer copout?

[gearmesh, inc.]

Originally Posted by PapaBear

That little friggin thing costs $114.95? WTF? I'm in the wrong business.


And Gerald, does that mean that you concur on our diagnosis of valve train and not ignition?

The cost of the tool will be chump change compared to what Hendrick will probably end up charging you for chasing ghosts on their end. I believe JP has one of those tools that can be borrowed for a minor fee to keep from purchasing one outright.

Valvetrain is about the only area left to dig into other than unplugging the knock sensors via the plug at the rear of the intake and going for a ride. Unplugging the knock sensors will back the timing up some, but still leave enough to twist up to the top of the tach.

It isn't all that bad to get a valve cover off. It just looks intimidating with the coil pack rack and heater hoses run across the top. Its probably just as hard to get the rear plug out to put an air line to it to hold the valves up.