:cool2:
On 8/15/05 we picked up a 95 De Ville Concours in CA and drove it to PA. It ran fine until we hit Nebraska and then a misfire started. New wires haven't fixed it and new coils didn't fix it.
I am in PA now and talked with one of my mechanics yesterday. He ran a TSB on the 95 De Ville Concours and almost 300 TSB's appeared. Stopped at the one discussing wires/plugs/carbon tracking and misfires. The TSB says to use spark plug AC-929 (ribless insulator). It also mentions wires (GM part of course). The TSB states, "The new AC 929 spark plug and boot design significantly reduces carbon tracking and reduces engine misfire." Reduces? How about eliminates???? The TSB also states, "The boots contain FHC grease as a lubricant. If silicone type lubricants are added to FHC coated boots, carbon tracking of spark plugs may occur." Well isn't that just ducky. Many of the wires you buy already have a small amount of silicone rubbed applied to the boots.
I guess I now see why the PO spent 0ver $900 at the dealer for wires and coils. UNREAL! Minor tune up items costing $900.
IMHO the wiring loom on this car is made for carbon tracking and or arcing. The wires to the rear plugs are longer than needed and create a 90 degree bend, the wires going to the front tubes lay on top the manifold tubes and are held down on the metal tubes by the plastic cover.
For the past 15 years I've driven Jags and never need to pay for dealer only items like plugs or wires. The after market parts from my parts guy in Idaho work very well, the local parts stores also work for my Jag parts.
$900 for wires and coils. Give me a physical break! The engineers went way out of their way on this car to cement dealer only maintenance. I'm not thrilled with the maintenance part of the car.
It is a nice car to ride in, has a lot of power but I'm not sure I want to own a car that I can't even do a plug/wire job without dealer assistance. :hmm:
On 8/15/05 we picked up a 95 De Ville Concours in CA and drove it to PA. It ran fine until we hit Nebraska and then a misfire started. New wires haven't fixed it and new coils didn't fix it.
I am in PA now and talked with one of my mechanics yesterday. He ran a TSB on the 95 De Ville Concours and almost 300 TSB's appeared. Stopped at the one discussing wires/plugs/carbon tracking and misfires. The TSB says to use spark plug AC-929 (ribless insulator). It also mentions wires (GM part of course). The TSB states, "The new AC 929 spark plug and boot design significantly reduces carbon tracking and reduces engine misfire." Reduces? How about eliminates???? The TSB also states, "The boots contain FHC grease as a lubricant. If silicone type lubricants are added to FHC coated boots, carbon tracking of spark plugs may occur." Well isn't that just ducky. Many of the wires you buy already have a small amount of silicone rubbed applied to the boots.
I guess I now see why the PO spent 0ver $900 at the dealer for wires and coils. UNREAL! Minor tune up items costing $900.
IMHO the wiring loom on this car is made for carbon tracking and or arcing. The wires to the rear plugs are longer than needed and create a 90 degree bend, the wires going to the front tubes lay on top the manifold tubes and are held down on the metal tubes by the plastic cover.
For the past 15 years I've driven Jags and never need to pay for dealer only items like plugs or wires. The after market parts from my parts guy in Idaho work very well, the local parts stores also work for my Jag parts.
$900 for wires and coils. Give me a physical break! The engineers went way out of their way on this car to cement dealer only maintenance. I'm not thrilled with the maintenance part of the car.
It is a nice car to ride in, has a lot of power but I'm not sure I want to own a car that I can't even do a plug/wire job without dealer assistance. :hmm: