Engine Flush/Bars leak
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Junior User
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Engine Flush/Bars leak
I am just wondering if anyone has tried or heard of running a quart of transmission fluid as a engine flush before oil change. If so any draw backs.Also I suspect a slight head gasket leak as I have a little water from the tail pipe and was wondering if any of the stop leaks are worth the try because I reallllly don't have the time for head gaskets unless completly unavoidable
"Mifflin Clay"
Joined: Jul 2005
Posts: 3,177
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From: Mifflin, PA
I consider Bars Leak or any other such additive a stopgap measure, not a permanent repair. Good only for pinhole size leaks anyway. Drrawback is it can clog radiator and heater core passages. As to oil flush - unless it's a really high mileage crudded up neglected motor, don't bother. Todays high detergent oils clean pretty good. However if it's an old one as described, use a mix of motor oil and kerosene 50-50, run at idle for 15 minutes, then about 2500 rpm for 10. Drain and change filter. Note that this procedure is not recommended, but a last resort that can result in bearing damage......
The water in the tailpipe is probably condensation .. if you had a leaking head gasket the engine would eventually overheat due to loss of coolant. There would also probably be other symptoms....misfiring, overflow from the coolant resevoir,etc, depending on where the leak was.
The water in the tailpipe is probably condensation .. if you had a leaking head gasket the engine would eventually overheat due to loss of coolant. There would also probably be other symptoms....misfiring, overflow from the coolant resevoir,etc, depending on where the leak was.
Last edited by alchymist; Dec 21, 2007 at 07:10 AM.
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I'm not sure how "crudded up" but it is a 97 w/ 175500 and when I removed the upper intake there was a little build up. The main reason I was considering a flush is that I have a slight tap when the engine is cold and I have been told it is probably a lifter that is sticking on start up. While I am here has anyone had a problem w/Autozome DPFE going out quick I am getting a 0402 and tried everything I can think of except the DPFE as I just replaced it 6 mos ago to correct a 0401 code(which it did)
Last edited by darascal; Dec 21, 2007 at 07:14 AM.
Laughing Gas
Joined: Aug 2003
Posts: 1,175
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From: So. Cal.
A little water from the tailpipe is quite normal if the exhaust system hasn't had a chance to warm up to full operating temp. The catalytic converter generates a lot of water as it does it's job. The water will normally just evaporate when the exhaust system becomes hot enough.
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