I have an 02 disco ii. coils, plugs and wires have 3000 miles on them. last week i got a #3 cylinder misfire that cleared up in about 10 min. truck ran fine until today and im getting a #1 cylinder misfire. i have found that the throttle body heater/flange is leaking coolant onto the valve cover right above #1 and #3 and coolant is getting on the wires. 2 questions: could that coolant on plug wires be the cause of misfire and i live in a hot climate and am wondering if i can bypass the throttle body heater? please help

 

Probably not the cause of your misfires, but you can bypass it with the horseshoe bend in a quarter inch piece of copper tubing

 

thanks dusty. that is what i thought. i'll tell ya, i'm new to owning a disco and it is definitely a love/hate relationship.

 

Doesn't take long to get familiar with it. Then it gets pretty simple.
I would expect to find some leaking injectors or something silly like that that might explain both issues

 

Park your Disco in a totally , yes totally dark place , black as a power out .. start the engine , and look at the wires and coil , you will actually see all the leaks ( if any ) then you will know what to change as well .

 

glad you found the throttle body heat, I don't think it is your only problem though.
kind of hard for coolant from the exterior to cause a plug to misfire, especially if you have new plugs and wires on there already.

 

yup, plug wires arcing against block. such junk, only 3000 miles and they are shot already. can anyone recommend good wires

 

kingsborne wire company in cal. get the 8mm wire


http://www.kingsbornewires.com/Searc...001&model=B578


check the fitment

 

bypassed the throttle body heater, no leaks, yay!!!!!! I ordered a set of magnacor 8mm, and until they arrive I just bought a cheaper set and changed #1 and #3 wires and she is running like a champ again. thanks all for the help and motivation.