They say you should not have more than about 1-2 psi pressure in the exhaust. You can drill a hole in front of the cat and put a pressure guage in it and see what pressure you have. If it is high drill a hole behind the cat and check. If it is low the cat is plugged. If it is still high it could be a plug farther down the exhaust. On my daughters Grand Am I drilled a hole and put my fuel pump pressure guage up to it and had her start the car and it immediately pegged the needle at 10 psi. I unhooked the exhaust and my what a difference.
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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