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Please help. My car is a spaz!!

1.4K views 1 reply 2 participants last post by  VStar650CL  
#1 ·
When I start my car, before I put it in gear, it is really jumpy for 5-15 seconds and sometimes dies and I have to restart it. If I try to drive it while it’s jumping, it jumps worse or dies or just won’t go.
Next…when I put it in reverse, it backs up just fine like Terry in his wheel chair running from fireworks (google “put it in reverse Terry” if you haven’t seen it. Lol) but any time I put it in drive, it takes a few seconds before you feel it bump into drive.
Then, at least once a week it runs hot and I have to add coolant to an almost completely empty reservoir. We bought a pressure tester and tested it and it was slowly losing pressure but we couldn’t find a leak. The next morning when I started it, a light grey (not white) heavy smoke started pouring out of the exhaust. And it smelled pretty bad. I parked it and took my husbands truck to work. When he got home, he started it and there was no smoke and no smell. Help please. Can I drive it? What’s wrong with this dang car?
 
#2 ·
Sounds like a blown head gasket. Once you shut the car off, the coolant stops circulating and "cooks" in the hot block, which pressurizes it. That forces a puddle of coolant past the bad head gasket and into the cylinders, which then misfire when you first start it back up. Once the coolant clears out it stops misfiring. When running, there's alternating pressure and vacuum applied to the bad gasket, so you both lose coolant into the cylinders and pump blowby into the cooling system, causing gradual coolant loss. The quickest way to look for a bad head gasket on a QR25 is a flashlight, pop the plugs out and take a look down the holes. Healthy cylinders will have a dense coating of jet black carbon on the piston crown, cylinders with a coolant leak will be shiny or have large shiny patches where coolant has blown the carbon away. The definitive test is a chemical blowby tester for the coolant, which changes color when blowby is present. Cheap and very reliable.