’00 D2 with 160k on the clock.

I did a service a year ago and 15k miles to include a filter and fluid. Driveshafts are GBR and in great shape.

So what is happening is there is a very subtle kinda bucking in top gear and the torque converter engaged. I initially thought it was the wind from the rack, but it seems to happen a bit too frequently to be that. I slowed to 55 mph on the freeway and put it in 3rd and let the torque converter engage again and it didn’t seem to do it. I dogged it pretty hard and let the revs run way up and no slipping during shifts. The engine is running immaculate- even when I rev the heck out of it in neutral.

I’ve got a 1500 mile trip in a couple days and I am a bit nervous now to take it. Any ideas?

I forgot to mention, the fluid that came out was perfect. And it doesn’t leak a drop. There are no noises- at least new ones, or different than my last Disco- and it shift perfectly under normal driving as well as hard shifting. Zero slipping. It shifts up at normal intervals.

Could i I just be being paranoid? I really wanted to take it as opposed to the Jeep for a bike pick up, but I don’t want to deal with the hassle if the Disco tanks.

i thought this too, but zero codes, runs immaculate, and temp and oil pressure are perfect.

Well, I’m kinda dumb. Just got P0300... and off to exercise my Google fu I go.

So I did the Seafoam in the brake booster line deal and it sure gave the Disco a heck of an Italian tune up. Holy smoke Batman! I hooked up the nanocom and looked for misfires and prior to the seafoam and when I got on the freeway I had a SLEW of misfires on Cylinder 6. After the Seafoam not near as many, but there were still a few.

My thoughts are that makes this a fueling issue (clogged injector or air leak at the O Ring) as opposed to a spark issue.

Good points, Brian. The plug wires most certainly have been replaced (I need to look and see what the brand is- they are smurfy blue). I’ve never replaced the plugs, but will pull cylinder 6 just to see. I’ve not done coil packs, but I don’t think that only one cylinder would be causing a pack to be bad. If everything else fails and I end up doing packs, Gerry is getting a call. I’ve not done O2 sensors, and I’ve replaced the MAF with a used one and cleaned that one once.

But in the pic I got a single misfire on Cylinder 3 , and I never saw another one. Prior to the Seafoam, and accelerating hard I got up to 35 on Cylinder 6. After the Seafoam, never another on Cylinder 3, and never over 5 on Cylinder 6.

I’m going out and pull the Cylinder 6 plug and inspect, and then research how to check fuel pressure- I know there is a shredder valve in there somewhere. I’ll report back after that on what I see.
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I just went out and pulled the #6 and #5 plugs and they both looked like this and had gaps of .43 and .46 respectively. I’m OK with that.

I’m still on that this is a fuel issue. I just added a can of seafoam to the gas tank and will do another when I fill up next time. It’s still cold enough that I don’t really feel like pulling the intake manifold.

I’ve not checked fuel pressure primarily because I don’t have the tool an don’t feel like spending $80 on one at this moment.


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I stopped by GBR and Tom scared the hell out of me and said with a misfire on Cylinder 6 it could be a cracked block!

So as soon as I left the office I stopped by the parts store and got the test kit. PHEW!!!!!!!!!


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