car wont start

139,000 MILES • 6 CYL • 2WD • MANUAL
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DONNA266
  • MEMBER
  • 2 POSTS
vauxhall vectra v6 cdti 3.0 wont start. have had diagnostic testing not picking up any faults, fuel filter has been bypassed still the same problem, any help would be greatly appreciated
May 8, 2011 at 11:50 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
**Cranks but no start condition:

Do below to determine if its a fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem,Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.
May 8, 2011 at 11:57 AM
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ME9
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  • 1 POST
I know this years and years old but it's a diesel not petrol.
Nov 19, 2021 at 2:30 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi,

I noticed it has been three days since you've been contacted. Has any progress been made? Also, I noticed you indicated is a diesel. Will it start if you use starting fluid?

Let us know what we can do to help.

Take care,

Joe
Nov 22, 2021 at 12:07 PM
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