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#1 |
Account Suspended
Join Date: Aug 2007
Location: USA
Posts: 1,223
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Lil troubleshooting help
need a little help pointing me in the right direction.
TBI 350. had dead battary I left the key on all night last week. Then put a cheap little charger on it all day. had enough juice to fire it up. backed it out of the garage. left the charger on it for a while. Started it back up to put it back in the garage. It started spiting and spuddering, wouldn't stay running, final died and would not restrart. It just cranked and cranked. I checked the tbi no fuel at all from the injectors. (pump is running) shot a little ether down the TBI still nothing. checked spark. no spark. figured this was all from a week/dead battery. So I got a brand new one. still no spark or fuel. so far I chased it down to no power on either end of the ignition fuse in the fuse box. My mind has gone blank at the moment and can not think what would be causing no ignition and no fuel. unless it wont inject fuel with out a ignition source any help would be greatfull |
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#2 |
Registered User
Join Date: Mar 2009
Location: Culleoka, Tenn
Posts: 49
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Re: Lil troubleshooting help
It sounds like your ignition module went out.
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#3 |
Registered User
Join Date: May 2010
Location: laurel hill Fl
Posts: 645
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Re: Lil troubleshooting help
have you checked for spark? put a screw driver in the end of the plug wire and drape it over the valve cover or other grounded part?
__________________
1985 C10 Custom Deluxe LWB 305/700r4 [ Goldfinger ] ![]() 1999 k3500 crew cab dually 6.5tdi/4l80e |
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#4 |
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 5,020
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Re: Lil troubleshooting help
I am assuming this is an 87-91 RV series and not a TBI conversion on an earlier CK.
No power on either side of the IGN fuse means you don't have power coming from the ignition switch. It cranks so both fusible links are good. My first guess is the ignition switch has failed. Buzz the pink wire from the IGN1 terminal on the ignition switch plug to the IGN and ECM1 fuses on your fuse panel. Then check both RED wires for 12v at the ignition switch. The HEI BAT wire and the IGN & ECM1 fuses get power from IGN1 terminal on the ignition switch. No 12v at BAT IGN & ECM1 = no spark or fuel.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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