Having problems with your 2004 Chevrolet Malibu ?

HAVE A 04 MALIBU AND IT RUNS GREAT FOR DAYS THEN ALL OF A SUDDEN IT WILL CRANK BUT NO START. WAIT ABOUT AN HOUR AND IT WILL START FINE. PLEASE HELP THIS CAR DOESNT DO THIS ALL THE TIME

Posted / edited by AnonymousUser on : 20-11-2017

Answers :

It seems to me that the engine won't start on these occasion when it is at operating temperature . There are a number of possibilities here , lets deal with one at a time .

A possible cause could be a lack of residual fuel pressure , meaning that when the engine is switched off the pressure drops rather than holds . This will cause the fuel to vaporize in the engine fuel rail and hence it will be hard to start .

The cause of fuel vaporization can be one of three things namely : leaking injectors , a faulty fuel regulator or a leaking check valve in the fuel pump .

So try checking your fuel pressure when the fault occurs . This is a dangerous operation unless you know what you are doing . Do that first and then get back to me .
Repair Help & Product Troubleshooting for 2004 Chevrolet Malibu

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