Water Pump Failure And The Car Still Working

[bluethunder2008]

Hi ,

I just had a LS400 98 two months ago with 99K mile , and the water pump crash while I was on the road traviling from city to another city, I saw the water dropping down from the card , then I decided to run the car after that , and I drove it 200 mile . was there any tech. in the engine to support the car if the water pump crash or stopped ?

I need to know. now I changed it and my car is working fine. and if someone know what is the fault tolarnce systems supported in the car please tell me. it would intreasted to know , if some failure happen while you are on the road , if the car has a backup system for it or not.

[ToddLS400]

I would say no water was flowing thru the block or it did very slowly (as water leaked out of the bad pump) when your pump went out. Water pumps have a release valve that lets the water flow out a little hole when the pump goes bad. I think this is so there is still some kind of flow by the pressure release? I'm not a mechanic.

You were probably on the freeway so you were getting forced air cooling through the grill. Did your temp gauge go abnormally high? The needle shouldn't be any further than half way up the gauge. If you were in slow traffic or stopped in a city, your car would of heated up real fast and you would cracked your block. Good to hear that everything is good now after replacing the pump. I'm sure your car is fine. Look at your tailpipes after the car is warmed up. If you see excessive steam, that's not good.

[bluethunder2008]

Well , I was in a high way driving around 75 mile/h and the temp was lower than the middel.

and that's true when I come inside the other city , the temperture were getting so fast high.

I hate the car wthen stop in the middel of long road like 200 mile or something. Do any have any Idea what should make sure of, before I start a trip using LS400 ?

[ToddLS400]

If you replaced the water pump then you're good to go.

Maybe a full tank of gas? :snoooorrrtttt:

[JPI]

The water pump on I6 and V8 tend to leak sometimes. The gasket on the pump doesn't seal properly. I just replaced a water pump on a 2002 ls430 with 15k miles. Make sure check the coolant level.

JPI