there are many possibilties, but you need to check for fuel pressure when it doesnt want to crank as this is one of the most common no starts on this car

 

Yeah, you need to find out if its not getting fuel or not getting spark. you should pick up a fuel pressure gauge and some sort of spark checker, they're pretty cheap at parts stores.

i assume you dont have any ses lights or anything? Ive had cars that wouldn't start because the factory security system was engaging when it shouldn't be. Make sure you hit "unlock" on the key fob before trying, or it could be an issue with the system itself.

 

fuel pump?

 

you dont even need a pressure gauge, or spark testor. for fuel when it cranks but no starts, press in the shrader valve on the fuel rail, if the pumps working youll get a good release of pressure. on the spark pull up the air box and remove one of the coils, lift it slightly from the plug while someone cranks the engine, youll hear the spark hitting.

 

While ive pulled off wires to check for spark, it wouldn't be the best thing to do for someone who doesn't really know what they're doing. it is a high enough voltage to kill you, or at the very least knock you on your butt!

Also, with your key on (not cranking) you should hear your fuel pump whining for a few seconds

 

For starters, pick up an OBDII tester. They're cheap, will spit out the error codes ( you didn't say whether the check engine light was on or not), and it'll quickly reveal fuel pressure and voltage without getting your hands dirty or shocked, let you know if plugs are firing, plus other important data. I often leave a Bluetooth OBDII tester plugged into a Jag when driving so I can whip out my phone when the check engine light pops on, read the code and clear the engine light.

Intermittent problems often start with low battery voltage, especially when the thermometer drops. Try attaching a battery charger before trying to start so it has plenty of voltage. Also, when starting, it is best to just turn the key to the run position and then wait until all the dash lights have finished their sequence and let the ECU read the sensors, only about 5 seconds or so.

 

13+ year old thread...

 

... with an OP who was a 'Guest" and has not been seen since he posted.