Coolant leak under throttle body of '01 D2 4.0

[davran]

All,

A mechanic friend of mine noticed what I should have, that there is a coolant leak on the Wife's D2 under the throttle body. It looks to be coming from a square plate with hoses going to it.

Pulling off the throttle body I assume means at least the gasket for the plate-thingy -- I'm sure the official part name -- and where the throttle body mounts to the plenum. Any other gaskets or hardware needed?

Thanks,

[D2000]

All you need is the "Throttle Body - Heater Plate Kit".
It comes with the gasket and bolts.

They all leak at the throttle body. I heard the new parts have an upgraded gasket.

[Rob]

I had the same problem on my D2 two years ago and my rover mechanic just bypassed it with some heater hose rather than replace the unit. From what the mechanic says it doesn't really get cold enough here to need the extra heat in the throttle body. It has not had any detrimental effect from what I can tell on the motor. My D2 always starts right-up regardless of the temp or weather conditions and always runs well.

Regards, Rob

[DaveB]

I've had the same problem. I picked up the kit Christopher mentioned. It's quite cheap and easy to do.

I hadn't heard of Rob's solution, but perhaps in the warmer climate of the Island, that would work fine.

Dave

[davran]

I got a new throttlebody heater plate kit and installed it yesterday. I'm very embarassed to say that on the last 'snug' the front bolt -- between the hoses -- broke off.

I've plugged the hoses to bypass the plate, but now I have a tiny bolt broken off in the throttlebody. Is there any way I'll be able to drill this out? Are there helicoils that small? Am I looking for a different throttlebody for the winter?

Very pissed off,

[davran]

Ok, a friend with a teeny chisel and hammer tapped out the broken bolt, so no drilling needed: phew.

[PaulC]

Yup been there, had one of those alloy screws that secure the TPS snap off while removing......not fun.