97 Ford Ranger XLT 4.0L OHV Coolant leak

[1997FordRangerXLT4.0]

There's a coolant leak some where , the pervious owner thinks on the front passenger side. Any advice on what to rip off first ? I figure it's a frost plug and hopefully one I can get at. All the lines seem good , If its anything major I'll put a 350 small block or something along those lines in it . Thanks for any advice !

 

[RonD]

Popular spot on the 4.0l is the front of the lower intake manifold.

Easiest way to find leak is to top up rad(cold) run engine until warmed up, this will put 12-18psi of pressure in the cooling system.
Stop somewhere quiet open hood, look and listen.

 

[97RangerXLT]

what Ron said. another part on my 97 4.0 that leaks a little bit is the vacuum valve for the heater core. cheap and easy fix, (just have not got around to doing it...)

AJ