Recent content by 68Chev

6
Engine electrical issue

Thx again Shurkey. Fuel pump control module is unique to HD models from what I've learned. Pic attached. Mounted under ECM rack, still figuring out what function is. Anyone know of a reliable source for ECM repair/rtn and programming for these old trucks, (besides bone yard)? Will post...
- 68Chev
- Post #10
- Nov 6, 2018
- Forum: Engine Performance + Maintenance
6
Engine electrical issue

Thx for info Schurkey. Will continue t/shooting ECM and wiring. ECM you refer to is computer under glove box - correct? 1. If fuel pump relay removal eliminates misfire/stall, would that indicate possible short in relay? Did not notice crank time taking longer, will do longer test run...
- 68Chev
- Post #8
- Nov 6, 2018
- Forum: Engine Performance + Maintenance
6
Engine electrical issue

Yes, just reading codes, don't have scanner or factory pubs. Anyone know what amp rating the fuel pump relay at firewall is, 15 or 30 amp? Was doing other t/shooting and I forgot to install fuel pump relay at firewall. Truck ran great, no stall or misfires. May have bad relay, but I...
- 68Chev
- Post #6
- Nov 4, 2018
- Forum: Engine Performance + Maintenance
6
Engine electrical issue

Yes, r/r'd spark control module next to MAP early on t/shooting, and swapped orig back in, no joy. Swapped out ICM prior to replacing distributor, no joy. Distributor was worn out, so it got r/r, came w/ new ICM. Per Unclegrimace, will go through ICM and SCM wiring again. During all this...
- 68Chev
- Post #4
- Oct 18, 2018
- Forum: Engine Performance + Maintenance
6
New member

Thx, nice truck. Nice SS stripes, but no flames? Mine's a beater, but it's been good to me.
- 68Chev
- Post #3
- Oct 18, 2018
- Forum: Introduction
6
Engine electrical issue

89 Chevy K2500 4x4, 350 TBI, TH400 transmission. 250K miles Have had progressive issue with motor stalling and dying. Started several yrs ago, intermittently (2 or 3 times yearly) would stall and die as I approached stop light and motor idled down. Would restart fine early on, then started...
- 68Chev
- Thread
- Oct 17, 2018
- Replies: 9
- Forum: Engine Performance + Maintenance
6
New member

89 Chevy K2500, 350 AT TBI, TH400 trans, no frills work truck. Hoping to find info to keep it alive for another qtr million miles.
- 68Chev
- Thread
- Oct 17, 2018
- Replies: 5
- Forum: Introduction