Recent content by mstumpf
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M
TBI timing help…
So I unplugged the coolant temp sender which is only 9 months old and the engine seems to stop stumbling and hesitating……the plot thickens….- mstumpf
- Post #25
- Forum: Engine & Performance
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M
TBI timing help…
There are no dumb questions! Yeah I made sure I was putting the timing light on the driver's side bank for cylinder one. The cones have a nice cone pattern.- mstumpf
- Post #21
- Forum: Engine & Performance
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TBI timing help…
Yeah, when out of gear and idling, it seems to act fine.- mstumpf
- Post #20
- Forum: Engine & Performance
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M
TBI timing help…
Yeah the injectors kept running once it stalled and the key was still in the on position. I thought that was weird too. Ok I tried unplugging the coolant sensor but it didn’t change anything. So I uninstalled the distributor, found TDC again, reinstalled, made sure plugs and wires were in...- mstumpf
- Post #10
- Forum: Engine & Performance
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M
TBI timing help…
Ok I checked the ECM and connections, all looked good. No corrosion and all securely fastened. Check the wire routing to make sure none were near the ICM wiring. Seems to be running ok but as soon as I put it in gear the RPMs drop and it wants to stall if it doesn’t stall. I did just notice...- mstumpf
- Post #7
- Forum: Engine & Performance
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M
TBI timing help…
Before I bought and replaced the whole distributor, I bought and replaced the ICM which didn’t help the problem because I was still getting no spark. I pulled the #1 plug and set it to top dead center by using a wooden dowel rod and watching it rise. The truck runs fine with the EST bypass...- mstumpf
- Post #4
- Forum: Engine & Performance
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M
TBI timing help…
So I have a 1987 Sierra Classic with the 305 TBI. Last week my son called me and told me it wouldn’t start at school. I went and verified no spark. Replaced the distributor as well as the ignition coil. Got motor to TDC, unplugged the ECM bypass and set base timing to 0 degrees. Unplugged the...- mstumpf
- Thread
- Replies: 29
- Forum: Engine & Performance
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M
USA-1 Seat Covers
Hi Texasmike, I just saw this and if you still have the set, I'd love to buy it from you. Im restoring an 87 Sierra classic with my son.
