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Old 01-10-2014, 09:32 AM   #1
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Odd no-start issue.

Ok, so if I put the key in and try to start, I get 'crank crank crank crank'. No firing. I noticed that when I key to Run position, the seatbelt light comes on, but there is no engine light coming on, and I'm not hearing the fuel pump prime.

If I leave the key in the run position for about a minute, the engine light comes on, pump primes and, 'crank crank vroom'. Runs normally until I shut it off.

I'm about 100% sure I don't have glow plugs, so what's the deal with the apparent delay to start? It's pretty cold up here right now, so I haven't taken the time to start tracing wires.

1994 YJ with a 4.0 and 5 speed.

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Old 01-10-2014, 10:11 AM   #2
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Search for Brain Surgery.

It could be the capacitors in the ECU

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Old 01-10-2014, 11:14 AM   #3
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That's an interesting idea. That would certainly delay the ecu turning on if the capacitors need to be recharged.
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Old 01-10-2014, 11:19 AM   #4
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Okay, found the right thread. I'll get some capacitors today and get to work on that tonight. Thanks!
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Old 01-10-2014, 11:05 PM   #5
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If you can't solder take it to a TV repair shop drop $10 and ask them to handle it.
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Old 01-11-2014, 09:20 AM   #6
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Soldering is no big deal. Radio shack sucks though. I miss the old Radio Shack that lived up to its name. I ended up having to order the capacitors. 7 bucks to ship less than 3 dollars worth of parts.
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Old 01-15-2014, 10:18 AM   #7
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Hi I have a 95 w a 4.0 and the same problem only when outside temp is too low it won't start!no matter how long I wait for the lights and the pump. Warm weather almost no delay
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Old 01-15-2014, 11:20 AM   #8
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Quote:
Originally Posted by David Colvin View Post
Hi I have a 95 w a 4.0 and the same problem only when outside temp is too low it won't start!no matter how long I wait for the lights and the pump. Warm weather almost no delay
Electrolytic capacitors have fluid in them which is integral to the proper operation of them. This fluid dries out as the caps get old. That's what causes the caps to no longer charge up. Extreme cold temps will also reduce the electrolytic fluids ability to conduct electricity. Especially if the caps are drying out.

Not saying this is definitely your issue but it could be.
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Old 01-15-2014, 11:38 AM   #9
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Thank you With basic tools can a novice locate and change out?
And where do I go from here?
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Old 01-15-2014, 02:12 PM   #10
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Thank you With basic tools can a novice locate and change out? And where do I go from here?
Search the phrase "brain surgery" and read the thread. It's easy enough to do if you are the type to roll your sleeves up and get in there. If not take it to a TV repair shop and ask them to do it. Should cost you around 10 bucks.

Again I am not saying that this is definitely your problem, just a possibility.

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