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Old 01-05-2016, 07:08 PM
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2008 Wrangler Sahara - No Start Cold Weather

Upgraded my 1995 YJ to a 2008 Sahara over the summer. First winter with a very electronic jeep 6 Speed, manual transmission.

Over the weekend temps dropped from -2C(28F) to -28C(-18F). Monday I went out to start the jeep, dashboard lights came on but the engine didnt turn.

With the key in the primary position, dashboard lights all come on, then extinguish. Radio plays, headlights are bright so its not an issue with battery power. I disconnected the battery and checked the terminals anyway, but they were clean and its a tight fit. Sentry Key/Security Alarm Indicator Light is not on.

There is a definite >clunk< sound from the engine when I turn the key to turn the engine on. But the engine doesnt even seem to try and engage.

Any ide'ers before I get CAA to take it to the mechanic?

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Old 01-05-2016, 08:01 PM   #2
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So it wont start and has not started since? I would suspect battery. They dont like cold weather sometimes. Do you have a place up there that can test it?

Edit: That's freaking cold.

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Old 01-06-2016, 12:44 AM   #3
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Go to canadian tire and get a battery warmer and trickle charger if its that cold. also what oil are you running? I would go to 0w30 as well.

trickle charger:

http://www.canadiantire.ca/en/pdp/mo...-0111505p.html

battery warmer:
http://www.canadiantire.ca/en/pdp/te...-0113116p.html

IF you have a radiant heater, you could put it under the jeep for 5-10 min. Had to do that for a old honda that had a frozen fuel line.
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Old 01-06-2016, 07:23 AM
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Battery Good

Quote:
Originally Posted by nighowl2000 View Post
Go to canadian tire and get a battery warmer and trickle charger if its that cold. also what oil are you running? I would go to 0w30 as well.

trickle charger:

MotoMaster 15/2A Automatic and Manual Battery Charger with 100A Engine Start | Canadian Tire

battery warmer:
Temro 80W Battery Warmer | Canadian Tire

IF you have a radiant heater, you could put it under the jeep for 5-10 min. Had to do that for a old honda that had a frozen fuel line.
Went out and bought a new battery - never hurts to have an extra. No Change. I am now suspecting

Clutch Safety Switch
Ignition Actuator
...or the starter itself.

If it were summer and not freakin cold out, I'd try replacing the starter myself. Jeep is frozen to my driveway, so thats not happening.

Will keep you posted on what it ends up being.
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Old 01-06-2016, 03:32 PM
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Update: Bought a new Clutch Safety Switch from Napa Auto Parts for $24.99. After some Cirque de Soleil level acrobatics under the dashboard and around the steering column I managed to replace it. All working now. Stupid pot metal construction.....

Thanks for the advice all.
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