Question about Chevrolet Blazer
Main reasons why an engine stalls:
Fuel filter clogged and/or water or impurities in fuel tank.
Faulty fuel pump and/or fuel pressure regulator.
Faulty or incorrectly gapped spark plugs wires.
Vacuum leak at the trottle body, intake manifold or vacuum hoses.
If spark plugs were changed recently, check for correct firing order, it is easy to mix the spark plug wires when changing plugs.
The ignition colis fail when hot, and some times only one end fails and the other works fine, when cool down, they both work again, check spark to all coil terminals.
Remove spark plugs, one at the time to check it's condition.
Use a fuel pressure tester to check fuel pressure when engine doesn't want to start to check fuel pump performance.
Good Luck, keep me posted!
Remove spark plug
Posted on Aug 07, 2010
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Posted on Jan 02, 2017
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