| Author | Message | ||
     Adam Biossat (Adam_b) New Member Username: Adam_b Post Number: 1 Registered: 08-2003 |
Hey guys. First post but I have been lurking for quite a while. Thanks to everyone that posts on this board! With the help of DiscoWeb, I decided on a '03 Discovery. Last weekend it turned the service engine soon light on at 8200 miles. It read codes for misfires on 3 different cylinders and a multiple misfire code. I took it to the LR service department and they replaced a few plug wires and said that fixed it. I got about an hour towards home and the SES light came on again. I took it back and they removed the valve covers and checked for sticking valves. They did not find any. They then replaced the remaining plug wires and said that fixed it. The SES light came on again today and it is a misfire again. The light only comes on (or flashes) under acceleration at a low speed, usually around 20-30 mph. It never comes on when I am just cruising. This is a BIG problem since the LR service department is 3.5 hours away. The light likes to wait until I'm all the way home to come on! Does anyone have any suggestions of things that the dealer or I could check to eliminate this problem? Thank you very much! Adam | ||
| OLIVER CLOTHSOFF (Everythingleaks) Senior Member Username: Everythingleaks Post Number: 308 Registered: 10-2002 |
They could try using some form of diagnostic equipment instead of throwing parts on the vehicle. If the other plug wires were bad why didn't they replace them the first time? Tell them to try using a oscilloscope (i know it is required by LRNA for them to have one) and study the ignition patterns. This would probably be a good start. | ||
| Ross Thoma (Rossthoma) Member Username: Rossthoma Post Number: 196 Registered: 08-2002 |
I would check if there is a lemon law in your state, and if they don't fix it on the next visit that due to the fact that they are not resolving the issue in due time and due to the fact that you reside 3.5 hours away and a weekly trip is not acceptable you will contact a lawyer and move forward for a legal resolution of the problem. Say it nicely and matterfactly, and try there solution if it is reasonable ie:they keep truck and give you an acceptable loaner (since this could be there last chance) so after if need be you have shown that you were open to ideas and tried to resolve this and now you want aciton. Ross T | ||
| Curtis N (Curtis) Dweb Lounge Member Username: Curtis Post Number: 674 Registered: 05-2002 |
Well, the problem is obviously elusive. A misfire code can be the result of either a fault in the ignition system or faulty fuel delivery. The problem is that the diagnostic process chart for a misfire takes somewhere around 30+ deveiations. This means the potential for a LOT of work. I would simply explain to the dealer that they absolutely MUST drive it though an entire drive cycle. The reason the light comes on when you get home is that the ECU will run in a default mode using standard parameters for various systems until an entire "drive cycle" is completed. Obviously your dealer is not doing you justice by driving this cycle. Make them do it and also make sure you get a decent loaner. I always dig the little Freeloaders  Curtis |
