Just got back from a trip with my 98, and i'm leaking antifreeze. I bought the truck a few months ago and noticed the overflow tank was low, so i filled it. It's been ok until i noticed this leak. It looked like it was coming from the water pump, but after reading some related threads I believe its the intake manifold. It's turned into quite the leak too!

Rather than pay to have someone do it, I'd like to tackle it myself. Problem is my do-it-yourself shop is 2 hours from where i live. What are the risks if I drive the truck?


Thanks-
Matt

 

Overheating and engine damage. You need to be certain of the source of the leak. If you don't have the eqipment to do so, have a shop pressure test the coolant system to locate the leak.

 

The potential risks Rich mentioned and that is what will happen if your coolant level drops too low. If your cooling system is full, and you check the level often (get a Stant safety cap before you try driving that far so you can check the radiator level with a hot radiator), then you should be able to make it where ever you need to go. Just make sure that is where the leak is located so you can be sure to have the appropriate tools and materials (gaskets, etc) on hand to affect repairs.

 

Update:

I let it idle up to normal operating temperature, ran the heater, etc. hoping to find the leak. After I shut it off, and let it cool down, no leaks.

I topped off the overflow tank & radiator and took it for a ride in an effort to get it warm and regenerate the leak. Again, let it cool down and noticed wetness underneath the backside of the water pump. I did just replace the belt about two months ago so i'm wondering if the tighter belt might have put different pressure on the water pump pulley????

I'll have to get a Stant saftey cap for sure. So i'm guessing that If i replace the water pump and gaskets I should be good to go. What do you think?

 

If you are sure that the water pump is at fault. VERY rarely will a water pump fail at the back after being in operation for a long while... Typically, the water pump will leak at the front seal.

 

Might want to check your oil level too. If there is a chance your intake is leaking, it might get into your crankcase. That happened to one of my V8 trucks and killed it. Even a small amount of antifreeze is very bad for your bearings.

 

Update:

Just had the cooling system pressure tested for $20. Mechanic says I need a new water pump. They quoted me $350 (outrageous) so Ive found myself a weekend project. I appreciate the replies.

Thanks-