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Cars & Trucks Master
21,873 Answers
- Posted on Sep 11, 2015
Re: 2006 PT Cruiser cranks but won't start, runs on...
Is the fuel pump relay sending power to the pump, do you have normal fuel pressure at the injectors, and are the injectors getting power and pulse from the computer ?
When it runs on either, that means you have spark, no fuel with a new fuel pump indicates the fuel pump relay isn't sending power to the fuel pump because it is bad or not getting signal from the ECM. It gets a signal from the ignition pulses to pull in the fuel pump relay. Since you get start on either that says spark is good so the trouble is likely in the signal oath to the fuel pump relay or the fuel pump relay itself.
Is there good fuel in the gas tank? Is the fuel filter plugged?
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