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Unread 08-16-2014, 09:11 PM   #1
blackwidow03
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2010 JK Wrangler 
 
Join Date: Aug 2014
Location: Cranberry
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Went thru mud hole, jeep won't start.

I was at the end of the trail, decided to take it out of 4 low and hit the puddle in first ear. Jeep immediately dies. When I turn the key, it clicks once like a dead battery. I had my friend tow me to the street and try to jump start me. Jeep just skidded the tires when I let the clutch out.
I have a cold air intake on my jeep. Is there a safety feature that kicked in and isn't letting my motor start? The puddle was ten feet long, and wasn't even over my tires. Feedback is appreciated in advance.

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Unread 08-16-2014, 09:37 PM   #2
pentastarguy
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did your engine ingest any mud and or water ? these hydrolock fairly easy. cai would make it that much easier.
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Unread 08-16-2014, 09:56 PM   #3
blackwidow03
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It has stalled in the past, but it would turn over. I'm wondering if I have a blown fuse somewhere.
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Unread 08-16-2014, 10:26 PM   #4
mitchconley
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Take the spark plugs out and turn it over to get any water out that may be in there. Pray it's not hydro locked with bent rods from trying to turn it over while locked up.

Edit: and swap out that CAI for a snorkel
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Unread 08-16-2014, 10:31 PM   #5
blackwidow03
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Quote:
Originally Posted by mitchconley View Post
Take the spark plugs out and turn it over to get any water out that may be in there. Pray it's not hydro locked with bent rods from trying to turn it over while locked up.

Edit: and swap out that CAI for a snorkel
Will do thanks. I checked the dipstick, oil looked good no water. Crazy part is, the water wasn't even over the tires, I have gone slow thru that hole 20 times. Didn't have a problem till I went thru it fast. I doubt I hydro locked the motor, it won't even turn over. It just makes a single "click" noise.
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Unread 08-16-2014, 10:37 PM   #6
ncb
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If the tires skid when letting the clutch out it sounds like the engine locked up. Prolly got some water In the cylinders. Hot air intakes + mud puddles + speed equal bad things. Good luck.
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Unread 08-16-2014, 10:50 PM   #7
mitchconley
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Quote:
Originally Posted by blackwidow03
Will do thanks. I checked the dipstick, oil looked good no water. Crazy part is, the water wasn't even over the tires, I have gone slow thru that hole 20 times. Didn't have a problem till I went thru it fast. I doubt I hydro locked the motor, it won't even turn over. It just makes a single "click" noise.
I hydro locked my ZJ twice. The first time was a 2-3' deep puddle at 20mph. It just clicked when I tried to turn it over. I pulled the plugs and cranked out a wave of water, then the plugs back in and drove home (I know.. I know..). The second time i was going slow in about 2' of water and kinda got on it in 4lo and it shot water like straight into the airbox. When I tried to start it the motor turned over for a split second then locked up. I think that split second was something important breaking, but I never tore the motor down.

Moral of the story, pull the plugs before you try to start it.
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Unread 08-16-2014, 11:28 PM   #8
krawler510
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Quote:
Originally Posted by blackwidow03
Will do thanks. I checked the dipstick, oil looked good no water. Crazy part is, the water wasn't even over the tires, I have gone slow thru that hole 20 times. Didn't have a problem till I went thru it fast. I doubt I hydro locked the motor, it won't even turn over. It just makes a single "click" noise.
Water in the oil wouldn't be your problem, it's water in the cylinders.
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Unread 08-17-2014, 07:43 PM   #9
blackwidow03
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Having it towed to the shop tomorrow. Crossing my fingers!
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Unread 08-18-2014, 12:03 AM   #10
LeighP
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I went through a not very deep muddy water section of track, just after I bought my JK. When I was cleaning up later, I was very surprised to find quite a bit of evidence of muddy water splashing into the intake of the airbox.
A snorkel is on my list of planned mods.....and avoiding muddy tracks till then.
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Unread 08-18-2014, 08:00 AM   #11
Godholio
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Pull the plugs and turn the key. See what happens.
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Unread 08-18-2014, 09:45 AM   #12
rubicon17
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Id like to see a pic of the engine bay, how fast were you going? It is easy to hydrolock a engine, especially with a open filter but it sure is gonna take some speed to do it especially if the water was not very deep.
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Unread 08-18-2014, 10:03 AM   #13
JIMBOX
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I've read of "HYDROLOCKING" in puddles 1" deep--

That was driving at 25 mph, back East somewhere-total engine replacement and I don't remember whether the warranty covered it/or not-probably depends on the Dealer-

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Unread 08-18-2014, 10:07 AM   #14
blackwidow03
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Yep, definitely hydro locked. Unbelievable.
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Unread 08-18-2014, 10:23 AM   #15
aristobrat
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Man, that sucks.

Doesn't take deep water to make a splash under the hood with enough water for the cold air intake to slurp up like a straw.
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