89 740GL Ran last night ok this morning.....

[Ken Burt]

I went to the store last night, my 740 fired up no problem drive a few
blocks to the g-store. Got real cold overnight. My wife hit the key it
fired, stalled, now it wont start. I gave it a shot of starting fluid,
nothing(figured it would atleast try to fire). Turns over fine. I took the
coil off and it checks to specs. Now where would I try next? The fuel pump
relay? The fuel pump? It warmed up to around 30 today and still nothing
btw.

 

[Peter K L Milnes]

Check the ignition amplifier and it's connector and the ICU and connector.

Cheers, Peter.

 

[Michael Pardee]

I went to the store last night, my 740 fired up no problem drive a few
blocks to the g-store. Got real cold overnight. My wife hit the key it
fired, stalled, now it wont start. I gave it a shot of starting fluid,
nothing(figured it would atleast try to fire). Turns over fine. I took the
coil off and it checks to specs. Now where would I try next? The fuel pump
relay? The fuel pump? It warmed up to around 30 today and still nothing
btw.

I'm fairly new to snow country, but some reliable locals tell me the plugs
can glaze with ice if they fire once and the engine stalls. The condensation
can be removed with a torch or hairdryer when the plugs are removed.

Mike

 

[Robert Dietz]

I went to the store last night, my 740 fired up no problem drive a few
blocks to the g-store. Got real cold overnight. My wife hit the key it
fired, stalled, now it wont start. I gave it a shot of starting fluid,
nothing(figured it would atleast try to fire). Turns over fine. I took the
coil off and it checks to specs. Now where would I try next? The fuel pump
relay? The fuel pump? It warmed up to around 30 today and still nothing
btw.

That's the classic condition for timing belt teeth to shear off where
they run on the crank shaft. Be sure the belt is turning the cam shaft
first.

Bob

 

[jg]

I went to the store last night, my 740 fired up no problem drive a few
blocks to the g-store. Got real cold overnight. My wife hit the key it
fired, stalled, now it wont start. I gave it a shot of starting fluid,
nothing(figured it would atleast try to fire). Turns over fine. I took the
coil off and it checks to specs. Now where would I try next? The fuel pump
relay? The fuel pump? It warmed up to around 30 today and still nothing
btw.

I still seem to have to re-learn this lesson each time - check if there is a
spark at one plug then check there is fuel to the carb/injector distributor,
then work back.

 

[James Sweet]

I went to the store last night, my 740 fired up no problem drive a few
blocks to the g-store. Got real cold overnight. My wife hit the key it
fired, stalled, now it wont start. I gave it a shot of starting fluid,
nothing(figured it would atleast try to fire). Turns over fine. I took the
coil off and it checks to specs. Now where would I try next? The fuel pump
relay? The fuel pump? It warmed up to around 30 today and still nothing
btw.

Does it have a spark? If so then starting fluid should at least make it
fire.

 

[Ken Burt]

I went to the store last night, my 740 fired up no problem drive a few
blocks to the g-store. Got real cold overnight. My wife hit the key it
fired, stalled, now it wont start. I gave it a shot of starting fluid,
nothing(figured it would atleast try to fire). Turns over fine. I took
the coil off and it checks to specs. Now where would I try next? The
fuel pump relay? The fuel pump? It warmed up to around 30 today and
still nothing btw.

I found the fuel pump relay somehow had gotten loose and wasn't making
contact. Pushed it down and slam bam thank ya mam it fired up.
Thanks for everyones help. I felt real helpless and BAY never give me any
trouble before.