Mechanics

ENGINE KEEPS SHUTTING OFF

1990 Volvo 740 • 6 cylinder FWD Automatic •

1990 740 Volvo non-Turbo engine keeps shutting off. If I let sit for 30 minutes or more will start back up. What is causing this?


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Kreed02
May 18, 2011.



A defective ignition module.

Mmprince4000
May 18, 2011.
Where is the ignition module located? And do you think maybe it could be the fuel pump? Thanks!

Tiny
Kreed02
May 18, 2011.
Under left side of dash, above steering column.

Could also be a bad relay.

Mmprince4000
May 18, 2011.
So the first thing I should change in the Iginition Module, then the Relay? Then if problem still exists should I do Fuel Pump? Thanks, Kris

Tiny
Kreed02
May 18, 2011.
Check relay first, when ign. It turned on it should click.

NEVER replace a fuel pump unless you confirm low pressure with a mechanical gauge.

The symptoms you dscribe are classic to an ignition module.

Mmprince4000
May 19, 2011.