Very High Idle...

[El_Cid_2000]

I went and picked up the Rover from LR of Columbia and a strange problem has arisen.

In N and P the Rover idles up to aprox. 1850-1900 rpm, in 1,2,3,D and R it's about 1000 rpm and when I go from R to D it jumps from 1000 to about 1500-1600. I left the truck in D and put my feet on the floor like in a slow race and I hit 17mph before I had to brake at the end of the road. 17mph! AC does not change the rpm at all. I noticed this at start up in the LR parking lot but as it was a Saturday there were no mechanics there. Before this trip to LR it idled about 500 rpm in all gears.

The service I had done would not require the dealership to even have to pop the hood. I did look at the archives and I guess I?ll check TPS and clean the stepper motor tomorrow and see if that changes anything. If not I?ll call LR Columbia on Monday and see what they suggest.

Any ideas out there?

Michael

 

[RoverChic]

Sounds like an ECU re-map to me. Had the same thing happen after the fuel pump was replaced. You might need to have your adaptations reset soon. I ate away my brake pads in about a week with that high idle problem.

 

[DiscoJen]

Ditto to that...

I just replaced my ECU with a recycled unit about 2-3 weeks ago (I was able to find one cheaper than the dealer would have charged to remap)...I have been idling beautifully since.

 

[Steve83]

What year & model of Rover is it? Check for binding throttle linkage, and see if someone spun the throttle cable adjusting wheel or knocked it out of its bracket.

 

[RoverChic]

Don't go run out and buy a new ECU yet (my re-map was Free) Ask for the service manager, and say "my rover was not like this before you touched it, now why is it like this now?" Something along those lines should work. Also disconnect the battery overnight. That might fix the problem all together. Melissa

 

[Hoot]

if your rover is post 95 then disconnecting the battery will not reset the ECU. i have the same damn problem and i have went through the stepper, the TPS, i even changed the coolant sender and sensor. I Still have the high idle so it loks like a remap is in my future as well.

just out of curiousity what did you have fixed on your rover?

 

[El_Cid_2000]

Steve83,
It's a 1997 SD with 122,5xx on the clock.

Hoot,
The Rover stranded me on the side of the road a week ago today. I (BAD MICHAEL!!!) had no tools or anything with me aside from one zip tie, a 5/16" nut driver and a crappy key chain flashlight. I had the Rover towed by AAA to LR of Columbia where I had the fusible link, fuse and wiring harness for the fuel pump replaced. On second thought "the service I had done would not require the dealership to even have to pop the hood" might not be all that accurate.

Michael

 

[RoverChic]

for the fuel pump replaced.

You need a re-map. I put $$$ on it. Go back to the dealership that changed the fuel pump: Tell them to re-set your adaptations.

Michael this took me about 10 minutes and I was back on the road again.

 

[El_Cid_2000]

RoverChic,

Even if it was just the wiring harness for the fuel pump and not the pump it self?

Michael

 

[RoverChic]

Even if it was just the wiring harness for the fuel pump and not the pump it self?

Same hear ~ But I had everything replaced. Fuel pump, harness, relay, fuel filter (again), ect. It will not fix itself. I take that back it **could** after about a week or so. I drove around for about 3 weeks until I came to the realization that it would not go away unless I drove with the A/C on, all the lights running, ect ect (basically putting a load on the engine) . Unless you are like 4 hours from the dealership, I would take it back. It has been my experience that anything related to the fuel pump can and will cause this erratic idle to happen. Not all Rovers mind you but it can happen.

FWIW: I ate away my brake pads as aforementioned. I changed them out ASAP and now the lovely ABS light is on intermittently. I am not saying this will happen to yours, or by any means there is a direct correlation between the brake pads, a bad piston, or the ABS light. Nevertheless, it takes more brake power to stop a car idling over 1000rpm in drive (more so in stop an go traffic)

 

[Steve83]

Your computer might have adapted itself to the (possible) low fuel pressure put out by the weak pump. Now that it has plenty, it might need a "kick in the pants" (clear adaptions & base idle reset) to learn how to run normally again.

 

[El_Cid_2000]

I found the problem. This is a vacuum line at the drivers side rear of the plenum. It's in a pretty hard spot to find but I'd had enough. It took me about 45 minutes of looking, pulling and pushing but I got it. The idle went right back down to normal. My gas mileage and new brake pads thank me I'm sure.

Michael

 

[Roverjoe]

Mike do you have a pic of which hose you fixed? This high idle thing is way too common on this board. Melissa - you have had more problems with your Disco then any other D1 owner I have ever met

 

[RoverChic]

Melissa - you have had more problems with your Disco then any other D1 owner I have ever met

I have said it once and I will say it again. What my Disco lacks mechanically I more than make up for in good looks. Vacumm line huh? Guess this ones on me. If you are ever in OK/TX let me know ..first round is on my AMEX. ****


****EDIT: That sounded like a cheap pick up line it was not intended to be a such but if I know Dweb..Nevermind.

 

[El_Cid_2000]

RoverJoe,
I do have a picture but it's too big. I'll try to resize it later today or tonight at home.

RoverChic,
By the way, cheap pickup lines (and beer) always work on guys.

Michael

 

[Joey]

Gee Melissa, you are trying to pick up way to many rover guys..... first you run into a curb looking at one, now you are editing post so it doesn't look like you are trying to buy drinks.... this is just too much fun.

By the way, how did the brake pad install go?

 

[RoverChic]

Shh! Is it that obvious? I know most of these men are married anyway. LOL! The one I really WANT is not being so responsive to my antics I need to turn up the rover heat on him! LOL!

Break job went very well. Thank you! Once again I forgot the kit for the pins however I just reused the old ones Serg said that was fine. I threw the old spring things away they were rotted to say the least. I had a lot of great help from another friend too, thanks Bill. Now onto the front pads with a rebuild caliper.

 

[jims95]

I had this problem with both my 1995 Range Rover Classic and my wife's 1998 Discovery.

On my Classic, the throttle connection on the cruise control vacuum actuator (black rubber diaphram) came part way off on the freeway and kept the throttle from completely closing. I opened the hood and fixed the problem.

On my wife's Discovery, this problem happened just after we took delivery. We bought it as a used "Certified" Land Rover. We had it back and forth numerous times to the dealer, Anaheim Hills (California) Land Rover before the problem was solved. First they changed out the battery (under warranty) and reset the ECU. The problem came back. Next they changed out the ECU (under warranty) and adjusted the throttle setting. The problem came back. They finally diagnosed that there was a problem with the engine harness (possibly corrosion releated) and that it needed to be changed out (under warranty). The engine harness was back ordered for 45 days from England, so they adjusted the throttle setting to keep the high revs down till the new engine harness arrived. They installed the new engine harness and readjusted the throttle setting. There have been no problems since. As we found out, the previous owner lived in Lake Arrowhead and the vehicle went through 3 winters. There were traces of "cinders" (they don't use salt on the roads when it snows) on the frame, and that this might be an indication of the possible source of corrosion that damaged the engine harness. I am so thankful that we purchased it as a "Certified" Land Rover. Otherwise, without a warranty this vehicle would have been a "money pit" to get it sorted out and fixed.

Jim Lupinetti

 

[SamS]

Shh! Is it that obvious? I know most of these men are married anyway. LOL! The one I really WANT is not being so responsive to my antics I need to turn up the rover heat on him! LOL!

NAS rovers always sem to run soo cool...

Do you expect this guy to be scanning posts looking for some clues?

I do see cheap pickup lines, but not cheap beer...you drive a posh import (European) vehicle, it should be Long Island Ice Tea's!!!

 

[RoverChic]

NAS rovers always sem to run soo cool...

Do you expect this guy to be scanning posts looking for some clues?

I do see cheap pickup lines, but not cheap beer...you drive a posh import (European) vehicle, it should be Long Island Ice Tea's!!!

Well you found the post did you not? FWIW: I prefer my men to be able to handle more than one long island iced tea!! Play the game ..its all about 'bait and hook'.

" We need to talk" LOL!!!