Thread: overheating - loss of power

Originally Posted by FordMan77

If you suspect those hoses to be a vac leak give em a spray with some carb cleaner while idling and see if you notice the engine change tone. Not sure I suggested that or not yet.

Track down any vac leaks before you jump into the compression test. From what I have read it really doesn't sound like you are low on any cylinders. With those MPG's on the highway I would think it'd be lower with a compression leak. But I've been wrong before.

When I spray hoses,intake,tb,injectors, w/carb cleaner no change in tone. doesn't do it all the time but sometimes at stop light engine will vibrate car a little like there's a vac leak, thats why I suspect a vac leak. I sprayed every vac hose connection(nothing). i did reset computer, left bat unpluged 40 minutes or so last night see if power is better after 35 40 miles put on.

Originally Posted by grand prix newb

When I spray hoses,intake,tb,injectors, w/carb cleaner no change in tone. doesn't do it all the time but sometimes at stop light engine will vibrate car a little like there's a vac leak, thats why I suspect a vac leak. I sprayed every vac hose connection(nothing). i did reset computer, left bat unpluged 40 minutes or so last night see if power is better after 35 40 miles put on.

ok leaving the bat unhooked for the half hour did the trick, power is greater then b4, just got to replace t and hope that will fix vac leak now. 135000 miles maybe the engine miss is tc related.