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914World.com _ 914World Garage _ Engine will not stay running

Posted by: martman Dec 12 2004, 11:12 AM

I was out and about and it was getting a little chilly so I pulled on the little red handle to warm things up a bit. I wanted a little more heat so I puulled a little more and the car died as I was driving on the freeway I put the control on off and the car started to run. I'm thinking OK what's up with that?

Got home in the driveway pulled the handle again and it killed the engine. Now I cannot get it started.

any idea's????

Posted by: dmenche914 Dec 12 2004, 12:23 PM

If the engine dies only whent he heater is in the full on position, then it is likely an electrical problem. When the heater lever is in the full on position, a ground contact is made at the lever. This is the wire that supplies ground to the relay for the engine mounted electric heater fan(s).
I'd guess there is something funky with the heater fans, that might be causing a voltage drop in the ignition, or fuel pump cutout via the relay panel.

To confirm, see if you got a good 12 volts at the coil with ignition on, see if voltage varies when heater lever is moved on and off the full on position.

See if anything was changed over the years (early verses later engines had a different wire harness with regards to the heater fans, so a prior engine swap might mean your wiring for this circuit is different than what the manual suggests it should be)

Also could be the fuel pump, is it running even if car won't start,? if not, check the relay panel in engine bay behind drivers position for issues. The heater fan, fuel pump relays all reside here.

Keep us posted

Posted by: Bleyseng Dec 12 2004, 12:34 PM

yep