monteboy84
10-25-2011, 04:52 AM
Hi guys,
My Monte died about a block from my house last night, it's had an ongoing problem that's kept it stuck in the garage for a month now, and I'm at my wit's end. It starts up and free-revs fine when I start it cold, but once I put it in gear and try driving, it takes maybe 100 feet for it to start spitting, sputtering and carrying on, then it won't rev over 2k RPM's either free-revving or in gear. It gets a sound almost like the plug wires are out of sequence. I thought it was out-running the Carter fuel pump before, and sucking the carb bowls dry, but I had a brand new Holley inline pump and regulator here for it, and it acts the same with them installed.
Specs:
SBC Vortec 5.7 bone stock from 98 GMC
Edelbrock RPM Air-Gap Intake
Crate Demon 650 Vacuum Secondary Elec Choke Carb
78 Chev HEI distributor, original module, pickup coil, and coil, new MSD cap and rotor
New this summer Accel Plug Wires
Holley blue fuel pump and regulator
Factory wiring to distributor, distributor only grounded through block, no external ground wire.
Ideas so far:
Ignition Module - I pulled the module and have it with me to get tested over lunchbreak
Bad coil?
Poor ground through the block -Solution would be to add an external ground wire to the distributor
Any other ideas? It died late at night and is off to the side of the road so I locked it and left it after pulling the module, but I really need to get this fixed today. I'm hoping it's just the module but I really have never had module problems before so I don't know if this is how they act? Any votes for current ideas or other suggestions to try would be greatly appreciated.
Thanks!
Matt
My Monte died about a block from my house last night, it's had an ongoing problem that's kept it stuck in the garage for a month now, and I'm at my wit's end. It starts up and free-revs fine when I start it cold, but once I put it in gear and try driving, it takes maybe 100 feet for it to start spitting, sputtering and carrying on, then it won't rev over 2k RPM's either free-revving or in gear. It gets a sound almost like the plug wires are out of sequence. I thought it was out-running the Carter fuel pump before, and sucking the carb bowls dry, but I had a brand new Holley inline pump and regulator here for it, and it acts the same with them installed.
Specs:
SBC Vortec 5.7 bone stock from 98 GMC
Edelbrock RPM Air-Gap Intake
Crate Demon 650 Vacuum Secondary Elec Choke Carb
78 Chev HEI distributor, original module, pickup coil, and coil, new MSD cap and rotor
New this summer Accel Plug Wires
Holley blue fuel pump and regulator
Factory wiring to distributor, distributor only grounded through block, no external ground wire.
Ideas so far:
Ignition Module - I pulled the module and have it with me to get tested over lunchbreak
Bad coil?
Poor ground through the block -Solution would be to add an external ground wire to the distributor
Any other ideas? It died late at night and is off to the side of the road so I locked it and left it after pulling the module, but I really need to get this fixed today. I'm hoping it's just the module but I really have never had module problems before so I don't know if this is how they act? Any votes for current ideas or other suggestions to try would be greatly appreciated.
Thanks!
Matt