Blown Headgasket or ??????
After having my '89 GMC 2500 4X4 in the shop 3 times in the last month to fix an oil leak I now have a new problem. (no, I'm not getting a different truck.)
After picking it up from the shop the other night it began running "rough" under heavy acceleration going up a hill and proceeded to lose lots of power. It sounded like lifter noise at first but once I got home it started fine and idles fine. However, when I hit about 1/2 throttle there is a "knock" and then it runs rough and doesn't't "clean out" until it goes back to idle.
I am replacing plug, wires, cap and rotor this morning.....but I am praying that I don't have a head gasket problem.
Is there an easy way for me to tell if I have a blown head gasket?
Would that explain the symptoms?
Thanks for any and all suggestions and help!!
Tim Blocher
Aquatics Unlimited
After having my '89 GMC 2500 4X4 in the shop 3 times in the last month to fix an oil leak I now have a new problem. (no, I'm not getting a different truck.)
After picking it up from the shop the other night it began running "rough" under heavy acceleration going up a hill and proceeded to lose lots of power. It sounded like lifter noise at first but once I got home it started fine and idles fine. However, when I hit about 1/2 throttle there is a "knock" and then it runs rough and doesn't't "clean out" until it goes back to idle.
I am replacing plug, wires, cap and rotor this morning.....but I am praying that I don't have a head gasket problem.
Is there an easy way for me to tell if I have a blown head gasket?
Would that explain the symptoms?
Thanks for any and all suggestions and help!!
Tim Blocher
Aquatics Unlimited