Moparts

help truck stuck and it keeps losing power

Posted By: 72d100

help truck stuck and it keeps losing power - 07/05/08 10:26 PM

every time my truck starts and i put it in drive it loses all power. any ideas, and its a 400 with electronic ignition

Posted By: scratchnfotraction

Re: help truck stuck and it keeps losing power - 07/05/08 10:52 PM

fusable link maybe

ballest resister

short in the wires

elect pick up in the dizzy

Posted By: Bubba C

Re: help truck stuck and it keeps losing power - 07/05/08 10:55 PM

My 77 w-200 did that once and the wiring harness was rubbing through behind the distributer against the firewall...

Bubba

Posted By: dmerc

Re: help truck stuck and it keeps losing power - 07/06/08 12:43 AM

What happens if you put it in reverse or nuetral?
Are you losing electrical power or does the engine just die with the indicator lights still on??

Posted By: 72d100

Re: help truck stuck and it keeps losing power - 07/06/08 05:12 AM

it only does it in drive and loses all electricl power

Posted By: 79powerwagon

Re: help truck stuck and it keeps losing power - 07/06/08 10:20 AM

Check your engine mounts and your cab mounts. I've heard many a tale of SB trucks actually knocking the dizzy cap off from the cab rocking on bad mounts...

Posted By: chrisf

Re: help truck stuck and it keeps losing power - 07/06/08 02:34 PM

Quote:

its a 400 with electronic ignition

little hard to knock the cap off.

does it just die (stall) or lose power? its starts back up right away?

Posted By: 72d100

Re: help truck stuck and it keeps losing power - 07/06/08 03:41 PM

i got it to grt power once so i started it, when i put it in drive it died and i aint had no power or anything since then.

Posted By: Posest

Re: help truck stuck and it keeps losing power - 07/06/08 06:04 PM

I have knocked the cap off before. You dont knock it all the way off you just bump it off center on the dizzy.