Tip & How-To about Chevrolet Cavalier
Car running rough? Stalls at strange times but after a few minutes restarts? Could be vaporlock.
Vaporlock is more and more common these days as the fuels change and older cars are running on more and more ethanol. They simply weren't designed to run this fuel, originally.
So the easy way to tell if it's vaporlock is pop the hood once its stalled and pour some nonflammable fluid on the fuel lines. This cools them down and helps it restart. This is a temporary fix. A more permanent one is to get a heat shield installed on the fuel lines.
Technical Explanation: Vaporlock is the fuel boiling and the car does not properly measure it out then so the engine starves of fuel and stalls. The residual engine heat can keep it this way for many minutes.
Posted by Possum... on
Jul 17, 2014 | 1991 GMC S-15 Jimmy
Aug 21, 2009 | 2000 Pontiac Montana
Jun 07, 2009 | 1994 Cadillac DeVille
Jul 22, 2008 | 1986 Dodge Ramcharger
1,905 people viewed this tip
Usually answered in minutes!