04 Disco SE .....only code that is registering is for cylinder 8 misfire. Prior to that, multiple misfire codes and changed plugs and wires then ran fine for about 2 weeks.....Now, loses power at about 1500 rpm's.....engine light flashes....backfires under the hood. Took to landrover dealer to diagnose. They say may be sticky valve. $2700.00 to do valve job. Air compression good. Replaced wires, coilpack, plugs, changed oil. Other mechanic tested injectors and said were good. HELP!!!

04 Disco SE
60,000 miles
Heidi and Chad-owners

 

what plugs and wires are you running?

What octane fuel?

 

+1 what kind of wires and plugs are you using? what kind of gas?

when was the last time you did a good tune up? induction cleaning/throttle body cleaning

 

The wires are not magnacor's. Does that make a difference? Plugs are bosch platinums....which are already sooted. Only use premium type gas.

 

Yes, it matters that they are not magnecores.

There are any number of things that can cause a misfire like that.

Do a Seafoam treatment, put some copper champion plugs in her, and see if that helps.

 

Did seafoam in gas tank.....no difference..Should we just get new wires and plugs?

 

New 8MM wires and either regular Champion or +4 Bosch plugs.

The regular plats run like poop on any wires.

 

Will do this ASAP....Thanks for the tips....will get back to you and let you know what happens.

 

please note that you should stop driving any time the light is flashing. If it is steady on, it means you need to service something, if it is flashing, something really bad is happening to the motor. Anything in red or flashing means stop...

 

We are not driving the disco! We knew the flashing meant trouble...read the manual about service engine lights. Thanks for the heads up....hopefully can fix already have put $800 in the vehicle and have had it only one year.