| Author |
Message |
    
4x4 Ken
| | Posted on Thursday, June 27, 2002 - 02:20 am: | 
|
Ok as you might have guessed I'm having trouble figuring out why my 95 disco with 98miles is running rough. Up until the day before yesterday all was smooth and quiet , now it idles rough, the engine is noticibly louder , and the power has dropped completely (feels like I'm bogging out whenever I step on the gas) . I have checked the vaccum and there does appear to be a leak . So I plugged the hose to see if that would isolate the problem which it did not. My plugs and wires have been inspected ,no problems there. I don't believe the o2 sensors have ever been changed . I checked the archives and it sounds like this may be the problem . Just checking if anyone else out there may have any other suggestions , reasurance , comments etc, before I make the purchase.
any help is appreciated.
4x4ken (truck sold separately) |
Jack (Olered)
| | Posted on Thursday, June 27, 2002 - 09:47 am: |
|
I am suffering from the exact same thing. I've had the truck in twice under warranty to fix the problem. The dealership cannot "recreate" the problem. It idles rough. When driving, it feels as if I'm trying to pull 50 elephants up the hills behind me. It acts like it doesn't want to downshift. The engine/exhaust sound has become throatier (if that's a word). It used to be so much more powerful. Any suggestions?
Jack99D1 |
4x4ken
| | Posted on Thursday, June 27, 2002 - 11:18 am: |
|
Jack sounds like you and I are experiencing the same symptoms. Just curious if your truck only does this after it's heated up ? I was told the rubber diaphram in the Vaccum assist can wear out causing this sort of thing . I'm going to replace mine today as I have tested mine, and I know that it's leaking (easy test )so I'll let you know if it fixes the problem.
Ken |
Jack (Olered)
| | Posted on Thursday, June 27, 2002 - 11:34 am: |
|
Yes it happens after heating up. Aside from the power-robbing viscous fan issue, the truck is just struggling. I've tried to explain it to the dealership but they have no clue. I just go on the before and after concept. It ran better before!!!!! |
4x4ken
| | Posted on Thursday, June 27, 2002 - 11:54 pm: |
|
Jack , I've done a little more reading on fuel pumps , and it's starting to look like this might be the possible root of our problems . I disconnected the Vaccum Advance, and also the O2 sensors to try and isolate the problem . The rough idle and throatier engine sound did not dissapear with this which leads me to believe that it is possibly a cloqqed fuel filter , or a fuel pump on it's last legs. Check "fuel pump" under the key word search function on the left , there are some good threads to read . Several others have described similar symptoms and have tried changing the plugs, cables , rotor, etc only to find it was the pump all along.
...still researching
Ken |
Ken
| | Posted on Friday, June 28, 2002 - 01:27 am: |
|
Ok found some more things to look at . " Ignition amplifier " .... it keeps going , it seems each person has had similar symptoms with the same trouble areas as well . Looks like there are a number of things to check . Hopefully it will be one of those.
good luck.
Ken |
Larry Grubbs (Larryg)
| | Posted on Friday, June 28, 2002 - 09:07 am: |
|
I just had the ignition amplifier problem on my '90 RRC. My symptoms were: Truck ran perfect until the engine got very hot. Then it would seem to miss, it was particularly noticable while going uphill. The misses occured at EVERY point in the RPM. Engine would idle just fine.
The symptoms you are describing sound like a failing fuel pump. However the dealer should (I hope) have checked the fuel pressure when you had it in under warranty. That would tell the tale. I would get the fuel pressure checked and then make absolutely sure that plugs, wires, cap, rotor and coil were all working properly. If everything seems in good shape then check/replace the amplifier. Just don't make the same mistake many a rover owners before you have made and start throwing money at it. It can get expensive real fast. Especially if the dealer is doing the work!
Larry
'90 RRC
'95 LWB |
Jack (Olered)
| | Posted on Friday, June 28, 2002 - 09:46 am: |
|
Well, it's getting harder and harder to get the dealer to listen/believe me. It seems as if I must take it in 4 times for every 1 fix. I have a blown out shock that is causing a vibration in the driver's/left front tire. The dealer says that it is operating "within the expected parameters". If my arm is fractured, I can still lift stuff with it but it will hurt like hell! That is expected parameters!!! Every fix on the work order sheet is "Cannot duplicate customer complaint". They must think I'm crazy!!!! |
4x4ken
| | Posted on Friday, June 28, 2002 - 09:58 pm: |
|
Jack , I feel for you , I have an appoinment at the dealer this Wednesday . Hopefully armed with a little more knowledge . I'll attempt to have the pro's check out the list of possible trouble spots and see if any of those are deffective . I'll let you know how it turns out. |
Anonymous
| | Posted on Friday, June 28, 2002 - 10:25 pm: |
|
I feel for you too. I'm going to post as anon to avoid hurting anyone's feelings. The folks at my dealership treat me pretty well!
I have found that the service tech that writes up my work requests is not very knowledgable about vehicle repairs. His strong suit is his people skills. So a lot is lost in the translation from me, to his computer system, to the tech. I have found that if I explain the problem in great detail, even diagnose it a bit for them, my success rate is much better. I always sit with him while he writes up the order. It takes a long time, but he usually gets it right.
Best of luck with your efforts.
One more thing, I'd pull the plugs to see if they are black and 'sooty'. If they are, it indicates a rich condition (O2 sensor maybe). If they are a lighter (white-brown-ish color, then it's running too lean. This could be fuel starvation. If you are unsure, put in two new plugs and watch what happens.
Thanks,
anon. |
4x4ken
| | Posted on Sunday, June 30, 2002 - 04:06 pm: |
|
Ok , While I was filling up on gas I noticed the cap was missing , turns out the wife had put gas in and forgot to put it back on . Not sure but, this is when all the problems started so I'm going get a new one and see if that fixes it . fingers are crossed . |
4x4ken
| | Posted on Wednesday, July 03, 2002 - 09:22 pm: |
|
ALL IS SOLVED !! I was checking the plugs when I pulled one out and it litterally came apart in my hand ! I purchased new ones $63 bucks for all nine from the dealer , now the truck runs smooth and quiet , and purs like a kitten .
CHECK YOUR PLUGS , EVEN IF YOU THINK THEY ARE OK , ONE OF MINE WAS PULLED OFF BY A MECHANIC AND TESTED FOR RESISTANCE ... EVERY THING WAS OK ON THAT ONE , SO I ASSUMED ALL THE OTHERS WERE OK TOO ! OBVIOUSLY NOT THE CASE . |
|
Closed: New threads not accepted on this page