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Old 09-17-2018, 07:58 PM   #1
89_740Turbo
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Default Replaced blinker lights and now the car isnt starting?

As the title states, I installed a new e code blinker light on my 740. After hooking everything back up, the car wont turn over. Lights work but that's it. I suspect I knocked something loose or the ignition module got loose.

Are there any ideas as to how complicated this might actually be?
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Old 09-17-2018, 08:12 PM   #2
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Did you replenish the 740 blinker fluid?
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Old 09-17-2018, 08:13 PM   #3
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Yeah, you need to bleed the blinker fluid to get any air out of the system.
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Old 09-17-2018, 08:17 PM   #4
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Won't turn over? Put a rip cord on the crank pulley.
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Old 09-17-2018, 08:18 PM   #5
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Did you replenish the 740 blinker fluid?
Went to Wally world and bought 7 quarts of the reccomended blinker fluid.

But in all seriousness though, do you think I may have knocked something loose? It wont even turn over.
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Old 09-17-2018, 08:30 PM   #6
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start with battery

who knows what you did there
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Old 09-17-2018, 08:35 PM   #7
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Install $800 muffler bearings
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Old 09-17-2018, 08:42 PM   #8
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Quote:
Originally Posted by 89_740Turbo View Post
I installed a new e code blinker light
Define "installed".

1 - Unplugged old bulb, plugged in new bulb.
2 - Replaced signal housing and socket, spliced into old wiring.
3 - Disconnected battery and a dozen other wires you didn't know where they went but you're pretty sure you put them all back.
4 - Used Sawzall to cut off front half of car, glued on different front half that already had new blinkers installed.
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Old 09-17-2018, 08:46 PM   #9
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Define "won't turn over".
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Old 09-17-2018, 08:48 PM   #10
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TB coming thru with the pro tech tips. I've never installed those so I don't know whats involved, backtrack and look at what could have been bumped, shorted out, etc. Pretty sure ya weren't near the ignition module since thats mounted on the pedal box, at least it is on my 740, but you probably were near the ecu in the passenger footwell, it would be very hard to knock that connector off though unless you had a hammer in there. What did you hook the lights to? Is it possible you hooked them to the wrong fuse/relay/whatever, or got the wires backwards?
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Old 09-17-2018, 08:49 PM   #11
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And ^^ those are good questions
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Old 09-17-2018, 08:51 PM   #12
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Obviously a blinker fluid line got knocked loose whilst installing bulbs.

You'll figure it out nOOb.

Grounds in vicinity of turn bulbs... Hmmmm

Fuses.... Hmmmm....

Engine wiring harness... Hmmmm....
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Old 09-17-2018, 09:56 PM   #13
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Make sure the little wire is still connected to the starter.
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Old 09-17-2018, 10:46 PM   #14
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All I did was twist the bulb housing out of the old ones and then retwist them back into the new ones. My girlfriend was with me when I did it lol that's literally all I did. I'm guessing I had to have knocked something loose during the process or its a ground like John said

I could have switched the wires that attach to the bulb housing by accident. If so that could cause the issue?


And by not turning over I mean I turn the key all the way to the right and the engine wont crank. Just the lights some on. It's so f*ckin odd.
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Old 09-17-2018, 10:53 PM   #15
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Obviously, start by checking fuses. Starter relay plugged in? Gets power when you turn to start? Also check the starter fluid if you haven't.

Don't confuse something you did with a random failure. Took me awhile to figure out why my speedo broke immediately after I dug around inside my dash, turns out it was the plug on the diff.
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Old 09-17-2018, 11:01 PM   #16
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dead battery
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Old 09-18-2018, 12:35 AM   #17
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dead battery
Crappy battery cable connections at the battery.

OP one has nothing to do with the other unless you left lights on long enough to finish off a crappy battery.
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Old 09-18-2018, 12:40 AM   #18
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If the lights stay on when you turn to start it's not the battery.
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Old 09-18-2018, 12:56 AM   #19
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Convert to megaswuirt.
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Old 09-18-2018, 01:04 AM   #20
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Swap to mechanical diesel with hand crank and use oil lamps for headlights.
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Old 09-18-2018, 01:51 AM   #21
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Tighten all the nuts behind the steering wheel. It’s a known 7/9 problem
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Old 09-18-2018, 09:38 AM   #22
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I'm going to assume this is the culprit of my issue?

https://i.imgur.com/wVh3rIf.jpg

https://i.imgur.com/7OsLCsH.jpg
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Old 09-18-2018, 09:46 AM   #23
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Nope, keep looking. That's supposed to be frayed and cut from factory.

But that does seem like a reason a car wouldn't start.
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Old 09-18-2018, 09:51 AM   #24
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Damnit. I'll keep looking
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Old 09-18-2018, 10:00 AM   #25
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Maybe this wire is supposed to be sliced to the other raw wires shown?

https://i.imgur.com/Ro2995t.jpg
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