| Author | Message | ||
     Jason McCombs (Jasonmc) Member Username: Jasonmc Post Number: 93 Registered: 06-2003 |
Hey guys I'm pretty much a landrover Newbie, i actually own a D1, but i have a question about a diagnosis that has been made on my bosses 97 range rover 4.0. He is not at all a DIY type of guy, he is not mechanically ignorant but he is just not interested in it. So that being said a rover was probably not the best choice for him to begin with but all that aside. My question revolves around a lengthy series of problems he has had wiht it. in the past three months his RangeRover has been at the dealer 5 times for like a week or more at a time. He's had endless fault codes, the OBD computer wsa replaced with a new one, his engine light goes on and off intermittantly, and his air ride suspension system has went out 3 times in this same period. He took it in to get the air ride sytem repaired and theyu replaced one of the units, when he went to pick it up they were lowering it down of the lift and as the suspension became load bearing another unit failed in front of him. OK this is to give you the recent history. now for the latest incident and the one that my question revolves around. He was drinving with his family up to his cabinand in route he stoped for gas and after filling up he went to restart the engine and it didnt want to turn over. he tried it a few times and finally it started, then as he finished the drive he started to notice that the automatic trans was not shitfing properly. He made it to the cabins drive way and it is an incline, he slowed down and turned off onto it and it went down into first and it had no power at all. he said he actually had to back up far enough to get a " running start" to obtain the momentum to roll up the driveway. he had it taken to the dealer and they told him that at last they had found the big problem, the problem that caused the poor shifting and the complete loss of power and the root of all the check engine lights and fault codes. and they said it waas just a bad battery. the battery was less than a year old. so i know a bad battery can cause problems but would think not to this extent, and further more wouldn't something else have caused the battery to fail so soon? and if the battery had been causing fault codes wouldn't the fault code have indicated the battery as the cause in the first place? I am just curious about this diagnosis and I think it sounds fishy. anybody got any ideas on this? | ||
| Bill Ross (Billr) Member Username: Billr Post Number: 79 Registered: 11-2002 |
Very possible. These days with all the ECUs a constant source of power and at given voltage is necessary for correct functioning, especially if you are using Bosch electronics. I had a Porsche once that had similar issues and it ended up being a fairly new battery with a shorted plate. Had enough juice to start most of the time, but the thing did weird stuff after that. I nearly went nuts trying to diagnois it until some mentioned that I should get the full test process on the battery. New battery and I was back in business | ||
| Randall Smith (Mr_smith) New Member Username: Mr_smith Post Number: 24 Registered: 04-2003 |
One complete dischsrge can easily kill a modern battery. The replacement battery should be fully charged also when installed on a car. Randall | ||
| Jason McCombs (Jasonmc) Member Username: Jasonmc Post Number: 98 Registered: 06-2003 |
I just wanted to bring this thread back to the top to get some more advice on this. My bosses battery was replaced and it worked fine for a few weeks, now he's getting a gearbox falut code and the other day he put it in reverse and strated to back up and the transmission slipped out of gear and would not engage in any gear. Thus the fault light. Could this still go back to the battery. Even though he had it changed to a new one, my guess is soemthing in the charging system is killing the battery. That would account for the truck going into "limp home mode" repeatidly, haves the EAS go out leaqving the truck on its bump stops, and also having the transmission dissengage and give the error. Any one got any ideas on how to trouble shoot this one? By the way The dealers mechanics seem to be next to useless in sloving this problem. | ||
| Brian Anderson (Hans) New Member Username: Hans Post Number: 11 Registered: 08-2003 |
I had a very similar problem with a 1998 4.6. Ended up being a bad (loose) connection from the battery to the alternator, sometimes it would make connection just fine but other times it wouldn't so things would start to fail, ie... gearbox faults, down to about 50 percent power... so on and so forth. |
