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Adam Ross (Discodriveradam)
Member
Username: Discodriveradam

Post Number: 248
Registered: 01-2003
Posted on Sunday, March 28, 2004 - 10:55 pm:   Edit Post Delete Post Print Post

Here's the problem:

Yesterday, my brother hit a mudhole way too fast, and his '00 DII stalled shortly after entry. We winched him out and started it up, and it ran fine. Not 100 yards farther down the trail, it started to run really rough and finally died. Tried to start her up and it did, but then stalled again. From then on it would stall about 2/3 of the times it was started.

Here are some of the symptoms that might help narrow down the problem:

When started, the gas would have to be applied to keep the truck from stalling. But the pedal had a horribly slow (2-3 second) delay to kicking in and accelerating. Sometimes, it would not accelerate at all when gassed, but then it would kick in once the pedal was released. Very weird.

The exhaust smoke was really thick. Temperatures were mild, so the thick exhaust was definitely out of place. Also, after we got the truck home, exhaust was spilling out under the driver's side doors.

The only way to drive the truck was to constantly pump the gas pedal while keeping it in 1st or 2nd gear. This kept the RPM's high enough to keep the speed up. Also, while driving on the highway, a horrible smell developed. I originally sttributed it to driving in the lower gears, but I thought I would see what your opinions are.

While the truck is running, the air filter box will "pop". It seems as if gasses are expanding in the box, and are not being released quickly enough, resulting in a sudden burst of air, or the "pop".

My first diagnosis was the air filter, as that is usually the problem in these situations. His was definitely soaked and spotted with mud, but after cleaning it off and drying it no difference was made. So i am now thinking that that basic cleaning was not thorough enough, and it will need to be replaced. Is this correct?

Guys, we only have enough cars in our family for each drving member to have one, so it needs to get back on the road quickly. Any help will be greatly appreciated.

Please, if something is unclear about my explanation, or if you need more detail, ask me and I will elaborate.

Thank you in advance.
 

Andrew Homan (Andy)
Member
Username: Andy

Post Number: 54
Registered: 01-2004
Posted on Sunday, March 28, 2004 - 11:21 pm:   Edit Post Delete Post Print Post

I would repalce the filter definately. you may want to dry any/all connectors withair compressor and check for water in them. The pop sounds like a back fire which is usually an iginition issue so something in the ingnition side may be very wet causing a bad signal to the coils from a sensor. Like I said before dry it out well. if it ran good priot to be wet and now it doesn't after getting wet Probably water some where it shouldn't be.

Cheers Andy
 

Sergei Rodionov (Uzbad)
Senior Member
Username: Uzbad

Post Number: 409
Registered: 08-2003
Posted on Monday, March 29, 2004 - 12:27 am:   Edit Post Delete Post Print Post

Adam check if mud gone further up in air intakes. I.e get all air hooses off and clean them. Check if there is any mud on IAC, and clean damn thing (its always good idea anyway).

If you will find any traces of mud/water behind MAF sensor, take whole assembly off, so you can access throttle thingy @ plenum chamber, and clean it throughly.

Hows exhaust feels? is it half blocked with mud? :-)
 

Ron Brown (Ron)
Senior Member
Username: Ron

Post Number: 823
Registered: 04-2001
Posted on Monday, March 29, 2004 - 01:55 pm:   Edit Post Delete Post Print Post

Disconnect MAF sensor. If it runs fine then it means the MAF is toast.
 

Robert Sublett (Rubisco98)
Senior Member
Username: Rubisco98

Post Number: 1182
Registered: 04-2002
Posted on Monday, March 29, 2004 - 03:48 pm:   Edit Post Delete Post Print Post

And if it is the MAF, give Nathan at www.discountbritishparts.com a call (formerly www.discountrovers.com). I just replaced the MAF in the D2 and he had it to me in a day. Cost was around $130.00 for new/OEM part.
 

Ryan Graham (Ryangraham)
Member
Username: Ryangraham

Post Number: 68
Registered: 01-2004
Posted on Monday, March 29, 2004 - 11:38 pm:   Edit Post Delete Post Print Post

Check your exhaust. A horrible smell and exhaust pouring from underneath the vehicle is not a good thing. What about a plugged cat?

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