gdaelemans

Usually water pumps start leaking when they are about to give up the ghost. I've had a slow leak for a few months now, suspected the water pump, and I finally got around to replacing the water pump - the technicians confirmed that was the source of my leak (I've got 180K on a '91). As for the vibration, could it be something else on the accessory chain, such as the A/C compressor? That has much more "inertia" than the water pump... just a thought.

Hi All, Just joined the forum. I've got a '91 LS400 with 180K - I've had it since about 155K - got it from my Dad after he got himself a '99. :) He had it from about 50K or so. I guess he knew it was headed for some issues when he gave it to me - since I've had it, I've had to replace lower front ball-joints - power steering pump - alternator (probably because of leaky PS pump). The A/C Compressor is shot, and now I believe the Water Pump is leaking (I'm losing coolant). I have a hard time stomaching the cost of parts for this car - the A/C compressor is outrageous - so I'll just drive the car in the non-summer months. I'm looking at replacing the water pump soon (as soon as my other car is more reliable). I have a few q's for the experienced types out there... 1. Does this engine ever have issues with emissions parts? I've started to notice a surging/missing sensation when cruising at lower speeds (say 40mph) with the tranny in O/D. It accelerates smoothly and briskly still. I had a similar experience with blocked EGR ports on a Nissan. (Note - the car has been run on mid-grade gas since my Dad had it - not super - is that a potential issue?) 2. Does anyone know of a good wholesale parts place online? I've got a local Toyota dealer willing to work on the car - and use my parts... This should make replacing the water pump and timing belts a little more palletable. Of course, I'd attempt this myself if only I had a decent garage to work in - but the new house didn't come with one, and I can't afford to build one and/or wait.. :) Thanks for any tips!!!!