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Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 14
Registered: 04-2003
Posted on Tuesday, July 01, 2003 - 07:24 am:   Edit Post Delete Post Print Post

Alright guys I've got a real problem on my hands. Last night a couple of buddies and I went mudding at a short trail relatively close to my house. As we were heading down the trail and hit a few muddy puddles my Discovery II just stopped and started idling. I pressed the gas but there was no response from the engine and then it shut off. We opened the hood and checked my air filter to see if any water had gotten in my air intake. Sure enough water had and was draining out of the black hose running out from the air filter to the engine. We let it sit for about 20 minutes and finally started it back up with the air filter back on. I cranked the engine and it started. We began back out of the trail and it started to cut in and out on me. We took the air filter off and let it idle for a while because the filter was wet and we didn't want the engine sucking in any more moisture. I drove it back home with the air filter off and it drove about the same. Is the MAF sensor a little tank about the size of an orange on the black tube from the air filter to the engine? Does it maybe sense water and and shut the engine off? What should I do now besides buying a new air filter? Some input would be greatly appreciated! I'm definitly going get a snorkel after this event if I still have any money! HELP
 

Paul D. Morgan (V22guy)
Senior Member
Username: V22guy

Post Number: 1648
Registered: 02-2002
Posted on Tuesday, July 01, 2003 - 07:53 am:   Edit Post Delete Post Print Post

Davis,

I have a feeling that you did the following:

#1 You shorted out your MAF. Your engine can run with the MAF disconnected.

#2 You have contaminated your TPS (throttle position sensor) and the surrounding body.

What would I do:

#1 Remove all the plastic tubing from your airbox to the throttle body.

#2 Drain out all mud, water, frogs, whatever else is in there.

#3 Obviously change air filter, and change your oil.

#4 if your truck is still hard to operate, then you might be hosed with a MAF replacement and / or throttle body contamination. If you truck is giving you the 'check engine light' then you should get it diagnosed. The dealer will be able to tell you if you are mis-firing cylinders and whatever else.

The air tube that connects to the inboard side of the fender wall has a crappy seal. A very weak point in the design of the D2. A snorkel will not help you if you do not beef up this seal.

I and several others on this board have experienced this same scenario to different degrees. Have Fun!

Paul
'00 Pig
 

Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 16
Registered: 04-2003
Posted on Tuesday, July 01, 2003 - 08:10 am:   Edit Post Delete Post Print Post

Thanks Paul,
How much would a replacement MAF sensor be and what about the TPS if that was the case. It seemed to be running fine on the way home, maybe a little underpowered, but pretty good. Do you know of a good place to purchase a "beefier" seal for the air tube. It seems as though the location of the intake is not in a very bright location, but what do I know I don't design cars for a living. More input is welcomed. Thanks again Paul.

D. Reed
 

Paul D. Morgan (V22guy)
Senior Member
Username: V22guy

Post Number: 1649
Registered: 02-2002
Posted on Tuesday, July 01, 2003 - 08:50 am:   Edit Post Delete Post Print Post

Are getting a check engine light? If not, consider yourself lucky. Dry everything out, change the oil, and throw some gas additive in the tank. Drive the vehicle.

I am not sure the going rate for a MAF or a TPS. Hopefully some folks in the know will chime in.

As for the seal, just go to an automotive store and buy some silicon sealent.
 

Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 17
Registered: 04-2003
Posted on Tuesday, July 01, 2003 - 02:58 pm:   Edit Post Delete Post Print Post

Hey Paul,
Before I disconnected the tubing to the throttle body I could hear some liquid sploshing around. I saw a little tank coming off the bottom of the black tubing that is connected between the throttle body and the air filter, and was wondering if that was there to collect any liquid that is sucked in through the air filter. I poured a little out to see what it was and it was murkey water. I assume that it needs to be poured out but I want to make sure before I do pour it out. Just making sure its ok to drain it out. Never had to do this so I'm not really sure and I don't want to "dig myself a deeper grave" so to speak.

Thanks,
Davis
 

Luis Constantin (Luisc)
Member
Username: Luisc

Post Number: 51
Registered: 02-2003
Posted on Tuesday, July 01, 2003 - 03:27 pm:   Edit Post Delete Post Print Post

I think I read on one of these other threads that an MAF cost about $500. That's $700 at the dealer.That little tank attched to the hose from the breather box to the intake is a resonator according to my dealer. It's suppose to help reduce engine noise from the intake side somehow. I'm a D1 owner so what do I know of a D2. I spotted it on the loaner I had from the dealer. Wanted to check out the new engine layout versus my D1.
Interesting that someone should bring attention to the seal where the breather connects to the fender. I was checking it out to fit to a D1. The present location of the breather is behind the headlight. When you go for a swim, the steam from the water hitting the engine tends to choke up the D1 and make it run rough. I was looking at a better source of air. But if there are issues with the D2 breather, I'd be interested in hearing about that as well.
 

Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 18
Registered: 04-2003
Posted on Tuesday, July 01, 2003 - 03:43 pm:   Edit Post Delete Post Print Post

Thanks Luis,

I'm just going to go ahead and drain it. Thats pretty steep for the MAF. I don't want to have to purchase that. I hope that mine isn't shorted and still works, as well as the throttle body.

Take Care,
Davis Reed
 

Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 19
Registered: 04-2003
Posted on Wednesday, July 02, 2003 - 01:50 pm:   Edit Post Delete Post Print Post

Hey all,
I've got a problem. I changed the oil today, put a gas additive in the tank, and changed the air filter, but the 'service engine soon' light popped up on the dash maybe an hour after I changed the oil. I talked to the guys at the Express Oil Change while I was changing the oil and they said that for about $50 they can clean the entire fuel and air intake systems. It'll clear out all of the water but also improve the performance of my engine. Will this be necessary if I have to send my Disco II in to get it serviced? NEED some more HELP!!!

Davis :-(
 

Terry Christmas (Cornfed3)
New Member
Username: Cornfed3

Post Number: 11
Registered: 06-2003
Posted on Wednesday, July 02, 2003 - 02:21 pm:   Edit Post Delete Post Print Post

Davis,
After reading the responses, I can't believe no one has suggested the spark plugs/wires. My 2000 DII service engine light kept coming on and then going out. I took it to Autozone and found that the plugs were bad. After I changed the plugs, no "Service Engine Soon" light. I'm not saying this is the fix, but what the hell, I'm sure your wagon needs a tune-up after the swim. Good Luck.
 

Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 20
Registered: 04-2003
Posted on Wednesday, July 02, 2003 - 02:41 pm:   Edit Post Delete Post Print Post

Haha, thanks Terry. That may be the case. But I'm wondering about the MAF sensor, and the TPS. A guy at Tennessee Off-Road is going to run a check and see what the problem is. Water in the intake can mess up more than you expected. Could Express Oil Change have done something while changing my oil to cause the light to show up?

Davis
 

Paul D. Morgan (V22guy)
Senior Member
Username: V22guy

Post Number: 1654
Registered: 02-2002
Posted on Wednesday, July 02, 2003 - 04:34 pm:   Edit Post Delete Post Print Post

Terry,

That's why I recommended checking the codes for misfires; aka plugs / wires.

Paul
'00 Pig

 

Terry Christmas (Cornfed3)
New Member
Username: Cornfed3

Post Number: 12
Registered: 06-2003
Posted on Thursday, July 03, 2003 - 12:00 pm:   Edit Post Delete Post Print Post

Simmer down Paul,
You're right. You did say check the codes for mis-fires. I took it your response was in specific reference to the TPS and MAF, hence recommending a diagnosis from the dealer. Checking the plugs is an easy do-it-yourself way to see if the plugs are the problem and if they are remedy the problem for around $15. I don't recommend taking your LR to the dealer for every problem. Autozone provides a code check for free. Just drive up and it's done. LR dealers thrive on people who take their vehicles to them and not know what the general problem is.
Davis, Before you go muddin' again, buy bigger tires and a Higher lift kit.
 

Davis Reed (Davis_reed)
New Member
Username: Davis_reed

Post Number: 21
Registered: 04-2003
Posted on Thursday, July 03, 2003 - 05:00 pm:   Edit Post Delete Post Print Post

Hey Terry,
I already have OME 1.75 in. suspension lift on it and 265/75R16 Bridgestone Dueller A/T. I just hit the mud puddle a little too fast. I don't want to put a higher lift kit on it because I don't want to void the warranty. I'm going for a snorkel after this incident.

Davis
 

Terry Christmas (Cornfed3)
New Member
Username: Cornfed3

Post Number: 13
Registered: 06-2003
Posted on Monday, July 07, 2003 - 09:00 am:   Edit Post Delete Post Print Post

Davis,
My response about the lift and tires was my way of being funny. Water, mud puddles more specific, are very dangerous. Not knowing the depth of the water or the condition of the ground at the bottom could cause serious problems. Good Luck.

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