I just purchased this truck from the original owner, 52,000 miles, the engine light came on when I took it on 100 mile trip. I seems to have a skip. What might be the problem. The plugs and wires look original. Should they all be replaced or just the defective one if that is the problem?
The truck looks very nice and appears to be have been well maintained.
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Use a scan tool to be sure that there is no issue with the check engine light. If you get a scan tool that shows error codes in the 300 range then it is a misfire. Some causes of this are low fuel pressure, bad coils, etc.
recommend getting a scan of the OBD II connector for trouble codes, then get back to us. Autozone and Advance have free scanning service. The trouble codes will help us diagnose the specific misfire. With the codes, I can provide you some recommended troubleshooting or repair steps.
What engine do you have?
I have a 2002 Escape with 3.0 V6. It sounds like the ignition is getting damp and the engine is misfiring. If the CEL is flashing, you really shouldn't be driving it. Check the owners manual, but you could damage the engine.
Anyway, go to an Autozone or other parts store. Many will scan your engine for the DTC code for free. This code will give you a clue.
My code was for a for a cylinder misfire. I was close to 100,000 miles, so I replaced the plugs first, then the one coil. It was the coil.
I would recommend going back with ac/delco platinum plugs.Some of these "high performance" plugs dont work well in newer gm vehicles.The computer is sensing more than one cylinder misfiring and cant determine the cylinders the style of plug your using could very well be causing this