DIESEL RA RODEO WITH SNORKEL

exhaust? What have you looked at? Does seem strange.

Is the Air Cleaner element getting wet?

Sounds like a sensor getting wet ,is it auto if so the gearbox will go into safe mode if the harness plug gets wet, the symptoms are same as you describe, it is designed to get you home if there is a problem in the gearbox without doing too much damage
Regards kev

Hi

When I was in Lakefield I got talking to a bloke who was running convoy of 4WDs and he saw I was driving a RA Rodeo and said that if I ever lost power after a water crossing there is a little switch / relay next to the radiator on the driver's side that causes loss of power when wet as you are experiencing. I am not that mechanically minded so I never followed it up to see what the switch does as I have never had any problem. Might be a clue.

Paul

I had problems with my EGR (Exhaust Gas Recirculation) valve. This valve opens when not under load to and puts exhaust gases back into combustion chamber to reduce emissions. The shaft in the valve was bent and the valve wouldn't seat properly. Replaced valve problem solvered. This valve operated off a vacuum sensor located on the RHS near the air cleaner. I believe this is a known problem to Holden if it gets wet and I believe there is a "Techline" (Holden speak) on this part. Whether they have fixed it or not I don't know. When I had my problems the first county dealer I went to knew exactly where to look. Even the receptionist knew what the problem was. I figured there's a lot more diesel Rodeo in the country. Holden should sort it out under warranty.

Cheers

Mark

Check out the rodeo forum at Site Link. This might be the cause of your problem

Hi Hairy Wombat,
GMH are very aware of this problem with diesel RA Rodeo's. GMH have a change over kit for the EGR control valve. Original EGR control valves when they get wet, the water clogs a small filter which prevents the EGR valve from operating and it is very hard to get the engine to rev. This really nesessitates using L4, although in H4/H2 if you lift the revs up to 1500 before riding the clutch out and keep the revs up there when changing gears (flat shifting) you can keep the engine going.
I had it happen with my red RA ('03) on two consecutive weekends doing water crossings on the Mundaring Sawyers Valley powerline track. I have also experienced it after utilising drive through car washes. Since I have had the change over kit put in, it hasn't happened since, and I'm not expecting it too. My silver RA is an 05 model so it already had the fix from factory before being delivered.
You need to hound GMH, convince the service manager that you know GMH have a repair kit, and that it is to be replaced under new car warranty. But perhaps the service manager knows this and is trying to tease the situation out to beyond the new car warranty, which then of course there will be a replacement kit available that you can be charged for.
Good luck and let us know how you go. If no luck with your GMH service manager, take the issue as high as possible to get resolved.

Cheers,

Dion.

As mentioned, it will be the EGR valve. I had a client's rodeo do this when we crossed some water near Alice in July.

My 04 work Rodeo does the same....

Even does it sometimes when I wash the car (mine site wash pad)