Last post on Sep 09, 2013 at 9:47 AM
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Land Rover Discovery, Land Rover Discovery Series II, Audio, Entertainment System, Navigation System, Performance Mods, SUV
#94 of 5002 Intermitent loss of power
Oct 09, 2000 (4:49 pm)
I have a question regarding my 1997 Land Rover Discovery. I am experiencing an intermittent loss of power with my disco at highway speeds. I have contacted my local Land Rover service department, and they have not been able to identify the problem. I am hoping that someone else has experienced this problem and knows the solution.
From the speeds of 45mph and up, my disco will lose power for 2 seconds. It does not lose total power, but power is reduced by approx. 30%. Eventhough they only last 2 seconds, they occur randomly. Sometimes one after the other during a 20 second period. Other times I can go 20 miles without a problem. The rpms stay constant during these sessions. Due to the randomness of the sessions and the fact I do not have any service engine lights on, the dealership does not know how to find the problem.
If anyone has any information or can suggest a good website for a solution, I would be greatly appreciative.
Oct 11, 2000 (8:03 pm)
Did your dealer put your vehicle on the computer and check the error codes? When you loose power, do you loose all electrical (horn, radio, etc?) Have someone check the advance on the distributor.
#96 of 5002 Loss of Power
Oct 12, 2000 (10:08 pm)
The dealer stated that if I do not have any service lights on then the computer has not identified a problem. They said they could bring it in and go through the car but they will charge me $76/hour.
I only lose power, nothing else. Everything else (lights, radio, gauges, etc . .) stays status quo.
#97 of 5002 Loss of Power II
Oct 13, 2000 (3:54 pm)
I own a '96Disco. I also have the same loss of power (deceleration) when traveling at over 55 mph. The episodes are infrequent and do not happen all the time. But when it does the vehicle hesitates regains speed, hesitates, etc.
I took it to the local dealer who could not find
a problem after hooking up the computer.
Since I was due for the 60k mi maintenance, I
had it done (not cheap) and hope with this overhaul, it would somehow solve the problem. Guess What? 5 days later same thing. I love my Disco but this is frustrating.
I'm wary of traveling far. So if you find the answer please pass it along. Unfortunately, your not the only one with this problem.
#98 of 5002 An answer for the intermittent loss of power
Oct 14, 2000 (7:31 am)
Ok, let me tell you the story......
All Land Rover technicians are not created equal.
I own a '96 discovery, purchased used at 41000 kms (Canada) in Nov. 1998 with an extended 3yr/120000 kms warranty. Over the past two years I have put 75000 kms on with some severe off-roading included.
This vehicle has NEVER let me down, it has gone anywhere and everywhere I have wanted to take it. Although it does come with some quirks, and a little noise.
It's service has been maintained, oil/fluids, and all regular service maintenence.
At my dealership, it is only 1 of 2 in Vancouver, it is always a two week wait, but a loaner or rental vehicle is always provided.
As for this problem....it began last December (1999). A periodic, and very occasional loss of power, no loss or surge in rpms, just a momentary hesitation. With a check engine light. Promptly taken in, tested and nothing out of the ordinary in results. Sent home and all seemed fine.
January 2000, again temporary loss of power, check engine light on again, no surge or drop of rpms and speed was maintained. But a 2 second pause, and a slight whiplash effect. Another test was carried out, blame was placed on oxygen sensor malfunction, and replaced (thank god for an extended warranty) cost approx. $550 cdn. However, same effects felt again periodically a few days later while road tripping down the coast to California. Then all of a sudden fine.
June 2000, the problem re-occured, more severe and repetitive, check engine light on again. This time dealership suspected that exhessive valve stick was the problem, an expensive replacement and I put it off. A vacation and travel came and went so I barely touched the vehicle for two months.
August 23, 2000, The problem is incredibly persistent. At initial acceleration, city driving, highway driving, at any speed. Immediately taken in to dealership, again an oxygen sensor malfunction was blamed along with excessive valve stick. I ok'd the work, with only the oxygen sensor malfunction being covered by warranty. Land Rover technicians' "testbook" computer system "crashed" while connected to my engine. Locked my engine in security mode... for 12 days, while second testbook was shipped to the dealership, which arrived broken and unusable. Vehicle unlocked and prepared for my pickup on Sept. 7, 2000. Picked up the morn' of Sept 8, 2000, and ran smoothly for 40kms then the same problem reappeared.
Setember 11, 2000. Vehicle returned to dealership, vehicle retested by the highly qualified and experienced Land Rover technicians. This time they decided that the problem was related to a hot start switch and replaced it, along with renewing the speedometer transducer. Vehicle picked up on Sept. 15,2000.
September 19, 2000. Guess who headed back into the dealership.....yes the same problem. This time the fault "codes" were pulled again, and the problem was a thermostatic devise beside the transmission, I don't have the paperwork for this one yet or I could give you the exact name, but I picked up the car on Sept 22, received credit for all work done to date minus insurance deductible, and it is running smooth. Knock on wood!!!!!!
I beleive that this thermastatic devise was the problem, it is somewhere in the neighbourhood of a $100 part, I'll update this with exact names and numbers on tuesday when I receive all the paperwork. The problem is that this part when failing triggers other symptoms in the vehicle and those parts are traced first. It is only by a systematic detailed analysis that it can be found. .......Now of course this is what we're supposed to be paying these highly qualified technicians for. But is $90/hr what we're getting from them?!?
So hopefully for anyone else out there with this problem, you will not have to endure days/weeks/months of jerking in your vehicle.
My problem is not with my LandRover, it has 116000 kms (73000 miles), it looks new, exterior and interior, and I guess now a large percentage of engine parts are new too. Nor is my problem with the LandRover dealership, who has after seeing my face for 6 weeks or so, credited me for all service completed. My problem is with the technicans in the shop working on my vehicle, using their textbook computers as an answer for the "faults", rather than as a diagnostic tool.
That all being said I have thoroughly enjoyed owning this vehicle, it's comfort, reliability and ability offroad. If I was just doing city driving however, there are alot of "pretty" and functional SUV's out there. But if you are going anywhere into the backcountry and need a powerful and functional 4x4, Land Rover has it all.
P.S. I will post again on Tuesday when I have the paperwork on this most recent work. And I have driven my vehicle hard to road test it since the last incident and all seems fine.
#99 of 5002 Discovery Owner's Manual
Oct 16, 2000 (5:48 pm)
I recently purchased a 1994 Discovery, but do not have the owner's manual. I tried area Land Rover dealers but was told all manuals pre-1997 have been discontinued. I tried Land Rover web site but could not find any numbers to contact the company directly. Any ideas about how I may be able to get ahold of an owner's manual for this vehicle?
#100 of 5002 2000 Disco II update
Oct 17, 2000 (3:54 am)
Bought a new white 00 Disco II at Aristocrat Motors in Kansas City in April. Just had the 7500 checkup with no reported problems yet. My tail gate latch sticks every now and then, which I see others posting here complain of.
I am getting ready to go to the middle of now where South Dakota for a duck hunt, pulling trailer, taking dogs, and all that. Looking forward to seeing how it does on the long trip.
I think Ford buying LR is good. They did wonders for Jaguar. It's a better car, better made, better mechanics. Don't buy into any talk about a Tauras in fancy rapping. LR won't be a fancy Exploder (pun intended). LR will maintain it's quality and most likey get much better quality control. NO matter how die hard a fan you are, you have to admit that the engines specks and performance are crap compared to today's engines. The V6 in my 99 Trooper got better mileage, was more powerful, was quicker, pulled just as much weight, and was quitier. But, the darn charm, good looks, feel, and off road ability make up for this.
#101 of 5002 Intermittent Loss of Power
Oct 17, 2000 (12:16 pm)
I look forward to your next posting. I appreciate the detail and hope your experience solves my problem.
Oct 20, 2000 (2:54 am)
Has anyone had problems with scalloped tires? My dealer did not know the cause, I think it's my shocks and my mechanic agreed that could be a possible cause. I'd appreciate any info.
#103 of 5002 engine hesitation
Oct 21, 2000 (1:37 am)
Had the same symptoms described above and made about 10 trips to the dealer. Only difference is my check engine light never came on. Ended up being an engine vehicle speed sensor (less than $100).