no spark?

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crockett169
Posts:5
Joined:Wed Apr 23, 2008 10:46 pm
Location:newcastle upon tyne
no spark?

Postby crockett169 » Sat Jun 14, 2008 1:49 am

Hi

My 1988 3.6 turns over but doesn't produce a spark. I have changed the distributor coil, the rotor arm and the distributor cap. It still turns but no ingnition.

Can anyone advise a way to troubleshoot or a common solution to this.

Forgive my ignorance.

Thanks

James
Brakebuster
Posts:3145
Joined:Tue Apr 18, 2006 1:17 pm
Location:Gloucester UK

no spark?

Postby Brakebuster » Sat Jun 14, 2008 7:25 am

probably the engine ECU,its not telling the coil to spark

hope this helps

BB
1989 5.3ltr V12 XJS Coupé FULLY RESTORED
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davidr

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no spark?

Postby davidr » Sat Jun 14, 2008 9:38 am

Sounds to me like the crankshaft sensor that tells the engine ECU where the engine is in its rotation. If this has failed then the ECU gets "lost" and won't trigger a spark. It's a fairly common failure.
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crockett169
Posts:5
Joined:Wed Apr 23, 2008 10:46 pm
Location:newcastle upon tyne

no spark?

Postby crockett169 » Thu Jul 24, 2008 12:28 pm

Thanks for the help.

It actually turned out to be a loose multi block connector near the distributor - really hard to work out as it was only intrmitantly faulty and needed a second person to press it together whilst I turned it over. Sorted it with a tight snap tie.

James
_____________
1988 3.6 Coupe
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