the check engine light code can be any of over 1000 different things have code read most auto stores offer this service for free the code /fault will be a start point towards fixing your problem
Can you provide more details, type of vehicle, only acts up with a/c on, if you turn a/c off and turn the defrost on, sometimes the manufacturer will have the a/c compressor cycle, does the vehicle still act up?
Defective B+ battery cable from Alternator to battery
Poor Charging System ground(s)
Defective PCM wiring/connection to Alternator
Defective PCM
Defective Voltage Regulator
Large Parasitic battery drain
Defective Battery and/or cables
Common Misdiagnoses
Battery
Starter
Check the condition of your battery cables - are they corroded/have broken wire strands? Also check where the negative battery lead attaches to the engine/bodywork.
Check all the wiring for breaks and tightness - a small earth wire can be loosened and retightened to create a better earth. Corroded power wires can struggle to supply the correct voltage - remove and clean whatever you can find.
It's unlikely to be your alternator as you say it has been checked - the voltage regulator is built into the alternator so it must be okay.
A parasitic drain can be difficult to find. Try switching off everything - radio, heater ... the next time you start the car. If you know somebody who has a voltmeter and knows how to check for a power drain .. ask them.
The link below shows a Saturn PCM (it may not be your actual model..). Check all wiring around the PCM
Where To Find The ECM Module 3 0 Litre Saturn Vue
This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Normally within 5 seconds of starting. Is there a light on the dash that says SECURITY, or one light the photo? This is a common problem worth looking into. http://www.diy-gm-security.com/
Dear Greg,
I think I have the answer for you.
There is one common part to the clutch and the starter, both work the flywheel. ( This part may go by another name.)
The flywheel is between the engine and the transmission.
The flywheel has a ring gear on the outside edge that the starter engages when it is activated, and the clutch disc rubs against the same part on the rear, or should I say on the transmission side of the engine/transmission assembly.
Repairing all this will require the removal of the engine.
However, please be prepared that the cost to fix this may be astronomical, since the problem as to why the clutch got hot might be a problem with the engine, the transmission, or both.
God bless your efforts.
To be caused from several things 1 if the throttle body butterfly has carbon buildup that will cause it throttle body needs to be clean to the mass air sensor is dirty and needs to be clean. They use a special cleaner for mass air in a can do not touch the sensor with your hand our fingers. 3 you have a vacuum leak somewhere
2 x oxygen sensors --one after each cat converter
there are also 2 x heated oxygen sensors ( different operation and reporting system) that are before the cat converters or in the exhaust manifolds run the fault codes to find the faulty sensor and it probably isn't either o2 or ho2 sensors
