Just got new hoses installed after busting the heater hose. Thinking about a machined coolant flush. Jiffy Lube any good?

 

I have the machine in my shop in PA. It works very well when you use it correctly. It is easy to set up and once you set it up, it takes about 5 mins or less to complete the flush. Let the mechanic know you have an LT1 and that you have a reverse cooling system. They just have to reverse the hoses that they attach. Unfortunately, some people don't hook the machine up correctly, don't run it at all or just drain and refill the rad. It gives every mechanic a bad name, even the honest ones. I'd try to find someone you trust or ask someone who has a trust worthy mechanic. Again, if done correctly, it exchanges all of the antifreeze and water in your car and leaves no air if done right.

 

Ever since a quickie change place hooked their trans flush machine backwards and flushed my trans with somebody elses old fluid instead of sucking mine out, I know better than to let those places do anything more than dump oil in a DD regular-old-car.

You can flush your own coolant by repeatedly filling and draining with the t-stat removed, using water only. The trick is to be able to get enough water back out, so you can get back to a 50/50 mix. Pulling the block drain and knock sensor gets you close. When you refill, there will be some water still left in the engine, so first dump in the required amount of 100% AF, then add water to top off.

You can back flush the radiator or heater core simply by using a garden hose and washing them out.

 

Yeah thats what you get when you have people that dont care about your stuff. Do it right and do it yourself.

 

Stopped by a place today (Total Auto Care) or something, to get a price on the machine flush. $139. No thanks. The guy also said they would flush it and fill it with green coolant. I said my motor takes orange Dexcool. He said GM has gotten away from the orange because it turns to sludge over time? Now it's yellow or green coolant? Anyway, went by Jiffy Lube and their price was $91. I think a machined flush would do a better job than I could. Has anyone used Jiffy Lube for this procedure?