Intermitent starting problem 2002 volvo C70

Does it happen every time you crank the engine, or only after the car sits overnight ? has anyone checked fuel pressure before and after cranking ?

Have you checked your starter yet?

Sounds like the starter to me(I assumed you meant won't crank when hot).I have replaced only 1 starter(on my neighbor's Taurus)in the 15 years after quitting the GM dealer tech job 15 years ago.I probably could make a career just changing GM starters and alternators.(I only have Mopars in my driveway!)

First i would check the crank sensor by looking for rpm's on the tachometer or scan tool if you see any rpm's then crank sensor is good.Then check for leaking injectors and if they are not leaking then you will need to check the ECM it may have failed.

I had the same problem . on my 2002 silverado it turned to be the fuel pump failed because the fuel filter was clogged. I did the work myself could saved myself 219.00 and labor if I replaced a 7.00 $ Filter .

I have a bad feeling. I own a Volvo SW XC70 and I had to change the timing belt because I didn't want to have to buy a new engine. I changed it at around 150K miles. The belt is a composite and is not a chain (metal), so it can stretch, thus giving you "bad" timing and making it impossible to tune. If you have not checked or changed the belt, try it. It really won't cost that much (depending on where you take it. I went to Volvo. Good luck.
DON'T DRIVE THE CAR UNTIL YOU ARE SURE.

the fuel injectors are notorious for getting gunked up,use redexe/wynns full can to 1/2 tank gas,may cure it but worth a try anyway.....

Two things come to mind First is take car needs 9.6 volts to start,place on charger for awhile then try again, thats a constent 9.6 volts sitting can dicharge the battery just enough for no start.2nd make sure you move the gas pedal alittle when starting. If these dont work for you repost and I can give you more Ideas

Check the fuse panel

Will it crank over when it won't start? When It dies check for spark at the sparkplugs if none change the ignition module.
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