Having problems with your 1998 Chevrolet Blazer ?
Blazer ran fine, parked and came out after lunch and it would not fire, turns over but will not fire check engine lite is on with ignition in on position. checked fuses and they are all good, could it be the fuel pump? could it be oxgen sensor?
Hello csdunne: My name is Roger and I will answer your question. The oxygen sensor will not cause a no start condition. How ever the fuel pump will. You need to test the fuel pressure. Whether you have a 4x4 or 4x2 the pressures are the same. Key on engine off. a 4.3 W engine should have 60-66 psi. A 4.3 X engine will have 55-60 psi. I would also check the fuel filter. A dirty fuel filter will cause low fuel pressure. If the pressure is below the min. by just a few pounds the engine would not start. Should you need further help please just ask. Please rate the answer you received. Thank You for using Fix Ya. Roger
Repair Help & Product Troubleshooting for 1998 Chevrolet Blazer
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