20 Most Recent 2002 Mercury Sable - Page 8 Questions & Answers

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.

Clocksprings are part of computers. They are electronic parts inside the computer. If someone told you that you can replace it they were wrong. Unless your an electronic engineer. but you would still have to find it.

so you think you have fuel-so all you need is spark,compression and timing-so pull a plug wire off the coil pack and use a test light to see if you have spark-ground clip to engine,hold probe over open hole where wire goes and have someone crank motor-there should be a strong blue spark- denny

generally means a bad thermostat

Have someone hold the heater hoses at the Firewall where both travel through the heater core. When the heat is turned on and the engine has run to normal running temperature both the hoses should be equally hot. If one side is hot and one is not, the water flow valve is not opening. If both hoses are hot, then the inside ductwork is not channeling the airflow properly. If both hoses are only warm, not hot, then the Thermostat is stuck open and needs to be replaced. Then retest the heater hoses for warmth.

check oil level. Have the oil pressure tested by a mechanical pressure gauge. Check oil pressure sender unit and wiring for loose connections

trace them back visually, follow them along, you will eventually find the end.

run fault codes and look for a MAP/MAF sensor problem or an accelerator position sensor

have a compression test done as there may be a valve problem or a hydraulic tappet fault that is holding a valve open

check for vacuum leaks.

change the egr valve, that should take care of it. check the plugs also to make sure they are all firing.

its probably the fuse link located on the positive cable. that would explain the no charge condition. also check battery terminals for cleanliness. the fuse link is a weak point designed into the charging system so in the case of a power spike, the fuse blows out instead of an expensive electrical component. it may be in a fuse box for that matter.

sounds like the blower motor resistor. also check for water may need the cowl resealed too.

could have a bad thermostat or it could have been put in upsidedown