Ferrari F1
New member
I have a 99 F150 V6 4.2L 5 Speed Manual. So the problem is that when i turn the dial to set it to hot i takes a while to get hot b4 it wouldn't do that, another thing it does when i brake hard i can hear water running alongside what seems to be the door and the glove box. what can this be? a lot of forums say that it can be the heater core, thermostat, or the antifreeze coolant. but i don't think that my truck should have given out on me like this since it only has 56,000 miles. any help is greatly appreciated