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'87 TBI No Start.....HELP
Yes, it has a TH400 transmission. That explains what the second relay is for. Anybody have any ideas what's going on? Dave- hotrod1442
- Post #27
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
I haven't got a camera handy to take a pic.......but the relay is mounted right beside the fuel pump relay, attached to the same bracket on the firewall. The two relays look identical to each other. I seem to have misplaced the old fuel pump relay, so if it doesn't turn up, I'll get another...- hotrod1442
- Post #25
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
I applied 12V directly from batt. to both left/right pump feeds at the switch plug, and again both pumps would start. So I decided to apply 12V directly to the tan w/white stripe wire terminal @ the switch plug and retry pumps........both pumps worked, and I could toggle back and forth from one...- hotrod1442
- Post #23
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
I was kinda thinking the switch might be bad as well.......but that is why I decided to use jumper wires to see if I would get the same affect as when the switch was in place. I jumped the connector both ways, blk.(ground) to gray, tan to tan w/white stripe.......then went tan to blk., gray to...- hotrod1442
- Post #22
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
Did some more testing; -I got a new Fuel Tank Selector Valve (so at least I'd have a known good component).....I didn't see any grounding @ the valve assembly, and it's mounting screws are formed into the plastic housing, so I don't think they have any ability to ground the unit. All wires...- hotrod1442
- Post #19
- Forum: Engine & Performance
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Post your toys, square or not
No particular reason......just ended up a Post car (sedan)- hotrod1442
- Post #148
- Forum: Other Vehicles
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'87 TBI No Start.....HELP
Jim, I can't get that link to work?- hotrod1442
- Post #17
- Forum: Engine & Performance
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Post your toys, square or not
Our '70 442 W-30 (4spd car) Our '70 442 W-30 (replica) Race Car- hotrod1442
- Post #143
- Forum: Other Vehicles
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'87 TBI No Start.....HELP
OK, I energized the red wire @ relay. I've got 12V @ the tan w/white stripe wire @ selector switch, but no voltage @ either fuel pump wires (tan or gray) Figured the switch must be bad, so I check continuity between blk to gray, and tan to tan w/stripe with switch toggled to feed left pump...- hotrod1442
- Post #15
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
Jim, I can't seem to enlarge that schematic......I'm having a hard time trying to make it out.......eye sight isn't as good as it could be :) Dave- hotrod1442
- Post #13
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
Jim, Today, I was trying to use logic, and some of the wiring schematics that I got online, to try a couple of checks/tests :)....I checked, as you indicated, to see if I could start either of the pumps using the red wire coming off the Fuel Pump relay.....neither started. I also checked...- hotrod1442
- Post #11
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
Jim, First off, let me say thanks, I REALLY appreciate you taking the time to help walk me through this issue. I like to be as self sufficient as possible (fixing my own stuff, as opposed to farming the job out) but I'm a little challenged when it comes to electrical systems troubleshooting...- hotrod1442
- Post #8
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
Jim, -Do I need to be concerned about any possible bad sensors/inputs to the ECM harming the replacement ECM? -If I'm reading this right, I should have 0 volts @ pin A5 w/key switch "ON"? Thanks, Dave- hotrod1442
- Post #6
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
JIMS86, No, unfortunately I have nothing going to terminal "D" on my diagnostic plug. I have the ECM out from behind the glove box ready for troubleshooting. All that I've checked so far is the output from the ECM to the fuel pump relay (pin A1)......I'm only getting an output of 4V for...- hotrod1442
- Post #4
- Forum: Engine & Performance
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'87 TBI No Start.....HELP
Does anyone have a "flow chart" to walk me through troubleshooting a "no start" condition with my '87 1500 w/TBI 5.7? I have spark, but I'm not getting fuel @ the injectors. I cracked both fuel lines located @ back of the throttle body, and there was no fuel. I replaced the ignition module...- hotrod1442
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- Replies: 27
- Forum: Engine & Performance
