coilpack getting wet?

[Valley Ranger]

hey, im having a problem with my truck and its starting to tick me off, i can go rippin in the mud all i want but if i splash threw some water the truck works like crap, like yesterday are wheelin trip got cut short once again because i went threw some water a bit to fast and got something wet (coil?). I did this once before and i could only rev up to a sertant rpm then it cuts in and out untill it drys out, but yesterday i must have got what ever it was really wet, after about 10 mins of driving i just couldnt drive it, once i gave it gas it would just stutter.. so anyway we towed it home, went out this morning to see if it was still doing it and its fine... im just wondering if anyone else has this problem? and what can i do to fix it? also, do any of u have problems with your truck heating up if your driving in trails real slow? as long as im moving im fine but if i gotta try and try to get over/threw something my truck heats up?

 

[BIIHawg]

For the water issue. I dunno what you have done to your truck... but the first thing i ever did was relocate the air intake away from the stock location. If you're splashing thru water and its still in the stock location you're bound to soak your air filter which would make your truck run like crap.

As for the engine getting warm. If you're working it at high rpm and not much air is flowing into the engine bay then its bound to get a little warm. I switched to an electric fan inorder to have constant air flow no matter what rpm i'm at...but unless you have a collant issue somewhere, the stock mechanical fan should do fine. Wheeling tends to make an engine hot though....its part of the fun.

 

[Valley Ranger]

alright thanks for the tips bud, where did u relocate your intake to? also when i say it gets warm i mean it gets warm, not in the red but when i gets that hot i usually shut the truck down, and all u can hear is the water just boiling? i wouldnt think that would be normal? well i could see it if i was rompin on it but it happens when im not really even givin er?

 

[Stranger ranger]

For the water issue. I dunno what you have done to your truck... but the first thing i ever did was relocate the air intake away from the stock location. If you're splashing thru water and its still in the stock location you're bound to soak your air filter which would make your truck run like crap.

As for the engine getting warm. If you're working it at high rpm and not much air is flowing into the engine bay then its bound to get a little warm. I switched to an electric fan inorder to have constant air flow no matter what rpm i'm at...but unless you have a collant issue somewhere, the stock mechanical fan should do fine. Wheeling tends to make an engine hot though....its part of the fun.

First things first, You sucked in a little bit of water and your MAF has gotten wet. This is why your truck sputtered and stalled and acted up. Once it dried out, it was fine, correct? The more you rev it up when its sputtering like that, the faster it will dry out and back in the hole you go. You can sit and spray water with a consistent stream from a garden hose all day long on your coil pack and it SHOULD not skip a beat.

As for heating up in the woods. Well it can be a number of things, since you like the mud, pull the radiator and clean it really well. Take a pressure sprayer to it and spray from the fan side towards the grill/bumper side. Make sure your coolant is clean, because filthy coolant does a piss poor job of dispersing heat. Like I said, since you play in the mud a lot, those are two very good areas to start. Also, throw a normal temperature thermostat in, because they are cheap and not hard to change. After that, If its still over heating, Check to see if your fan is actually working. The centrifugal clutch it works from could be bad. Well its not so much centrifugal, but the fluid inside of it works on that type of force. Last but not least, Find a truck that was equipped with an automatic tranny, pull the radiator from it, somehow (there's many ways) plug up the holes for the tranny lines and run it in your truck. For me it was a direct swap, because i was lucky and found the same year truck. Its much much bigger than a standard transmission radiator. More fluid capacity. Try that out, if you like. I just know all these from experience because mud was my second home for years. Now its still fun but it gets old from time to time because it causes your unit to do weird things.

 

[BIIHawg]

when i first relocated the air intake i just took the elbow that comes off the air box and flipped it around. That will work if you have the square air box style. I can't help you if you have the cone filter style. Now my air intake runs into my cowl as a snorkel.

And that last post about the mud and checking all you colling system components is right. If its only getting a little warm then check that stuff first. Also if you are cruising around in low range at rpm and low speeds it might get warm too.

 

[Stranger ranger]

well if you ride in low range 10 times and it stays cool, and on the 11th time it gets warm, something is not working properly.

I'm not throwing rocks here i'm just saying.

 

[Valley Ranger]

now ive got a new problem... my temp gauge is all over the place? and i have no heat? i just put a new thermostat in it because it was doing this but it didnt fix it? any ideas?

 

[Kedyn's Crow]

An air bubble may have gotten in the cooling system when you changed the t-stat. Try taking the cap off and running the truck with the heater on to circulate everything and add coolant as needed.

 

[Valley Ranger]

it was doing it before i put the new thermostat in. Im thinking maybe its air locked from when i put the new rad in but i just cant see it because we dumped it in so slow, with the heat cranked.
Im gonna flush it out tomorrow night when i put my new breaks on and see if it fixs it. I wonna do some trail ridin this weekend, but i wont be if it keeps doing this.

 

[zuki]

now ive got a new problem... my temp gauge is all over the place? and i have no heat? i just put a new thermostat in it because it was doing this but it didnt fix it? any ideas?

blown head gasket? i know the 2.8's have a problem with that, but didn't think the 4.0's did. just a thought

and as far as water, i run 4.0 powered samurai through mud, water, and rivers with zero problems, as long as the air intake stays dry. they electonics don't seem to care to much. amazing really.

 

[Stranger ranger]

your temperature sending unit could be bad, mine malfunctioned before, its a cheap part I believe. I luckily had another 4.0 laying around and stole the part from it. It's been awhile but i'm almost positive its the on on the right of the intake if your standing in front of the truck looking towards the windshield.

 

[jeffy56]

Replace your fan clutch.