what is causing the ticking?
it only happens when i accelrate. as the rpms go up the ticking seems to follow it. i can hear it clear as day in the cabin of the truck. not sure if it can be heard on the outside.
You have "pre-injition" Basicly a carbon build up. You need to start using the next grade in fuel. You might want to go in for a "injector service". As cars age this happens. After the injector service I would recommend that you change your plugs. And this will cure the "ticking". If that is not the problem, You could have a exhaust manifold leak, that is common. You might need new bolts. Or if that dont work, You could also have a bad spark plug wire. All these will cause "ticking" upon acceleration. I would recommend that you get it looked at, the mechanic will be able to direct you on which issue it is. Best of luck.
In addition to all of these things, you may want to look at the valves. The rocker arms can loosen up and allow a bit of freeplay which will lightly "tick" as rpms increase. I removed the valve cover on a 1992 Jeep Cherokee and ran the engine as I tightened each valve slightly until the ticking stopped to fix a prob. just like this.
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