2002 Sable LS 43,000 miles. Check Engine light on again!
2002 Sable LS 43,000 miles. Check Engine light on again, just replaced the bad ignition coil and wires and plugs 6 months ago. there are no performance effects yet. have refilled the gas tank 5 times since light came on... Help
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Re: 2002 Sable LS 43,000 miles. Check Engine light on...
Without a fault code its impossible to diagnose. try pep boys or aamco or auto zone they will pull the code for you, usually for free. The code will relate to a sensor or area to be fixed. This will save you money and needless parts . post the code or codes so we can help
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Miles? Have you replaced ignition coils recently? Pretty good chance that they could be going bad. I would start by swapping all 8 coils and plugs and probably changing the valve cover gasket as well as those are known to go bad in the 2000-2003 LS
Can't believe some the lame answers here. Anyone having this issue check the PCV hose where it attaches too the air intake, the rubber breaks down and develops a leak. But these engines also have wiring issues that causes crankshaft sensor to fail at startup or under 1000 rpms causing the computer to shoot a code and trigger the engine light. I have these issue cause the above problem.
its most likely an ignition coil. you are probably getting a spike in the electrical system. my lincoln ls does the same thing sometimes. the check engine light wiill blink for awhile then stop, and eventually it will stay on and run rough. every single time it turned out to be an ignition coil.
You have two pumps,I guess you know that ,if you already did one. Did you check fuel pressure at the rail and check out the electronic pressure regulator? What codes are coming up and do they stay set?
I had the same problem with a 2004 LS. I took it to the dealer and turned out that 6 ignition coils were out and was factory defect. Ford extended the warranty for the ignition coil. All work and parts "no charge" this service was done about a month ago
I went thru this on my 2002 LS as well.
I replaced one ignition coil at the dealer - only to get the same misfire code on another cylinder. After a little research found out is actuall a gasket/o-ring problem design of the block. Spark plugs are deep in the block - under the oil - which is why they are supposed to last 100,000 miles. But the o-rings start to leak some where between 65k-85k miles. Coils go bad because of oil contamination. If you don't solve leaking oil problem will have to replace coils again - but sooner - because leaking oil will be progressively worse.
Cost - 8 ignition coils
set of spark plugs (who knew they were that expensive
and a ton of cash for the labor to tear down the top of the motor