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Bought a "Stop Leak" filled car unknowingly.... Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting Stilljonesing New User Mar 2, 2006, 4:00 PM Post #1 of 3 (2195 views) Bought a "Stop Leak" filled car unknowingly.... Sign In    nm (This post was edited by Stilljonesing on Oct 6, 2008, 12:38 PM) Tom Greenleaf Ultimate Carjunky / Moderator Mar 2, 2006, 7:08 PM Post #2 of 3 (2187 views) Re: Bought a "Stop Leak" filled car unknowingly.... Sign In Arggh! I don't like the sound of this. If you already found stop leak then someone put it in there for a reason. If the veh overheated badly before you owned it it could have caused lots of damage. -- Like head gaskets, warped heads, sludge that you will almost never win against. A very small amount of high quality stop leak - like 1/4 of what the container says can stop a radiator leak if minor. After that the problem needs to be fixed. None really can fix head gaskets. I suggest a complete flush and pressure check of cooling system, and when the stop leak is out of it the original problem should show up. Again -- if this engine has overheated hard, perhaps more than once, it's probably never going to be right. Your call on what to do but I would cut my losses and be honest but get rid of it. T DanD Veteran / Moderator Mar 3, 2006, 5:23 AM Post #3 of 3 (2180 views) Re: Bought a "Stop Leak" filled car unknowingly.... Sign In There is a very simple test that can be performed to determine whether there is any form of carbon monoxide getting into the cooling system and I believe that the test is approximately 80% accurate. The test doesn’t tell you if it’s a head gasket or the cylinder head itself has gone bad; just that there is contamination and the only way carbon monoxide can get into the cooling system is via one or the other. It’s called a block tester or combustion chamber leak detector. Do a Google search there’s lots of info on the product. It’s an inexpensive tool that you fill with a blue die and then draw fumes from the cooling system through it. If the die changes from blue to a yellowish color you have a problem that the engine needs to come apart to find the cause. Ask your mechanic he should know what I’m talking about; it only takes 10 minutes to perform after the engine is up to temperature and like I said it’s fairly accurate. If the test doesn’t show a problem start back at the basics as what Tom has suggested. Have the complete system flushed, the rad boiled out again but this time have them flow test the rad. If the rad isn’t 90% of new replace it. Sometimes that stop leak crap will not come out. Cooling fan(s)? Have them checked for proper operation, electric and or mechanical. Dan. Canadian "EH"   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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