|
On both 87's I've had, the original hose going from the radiator cap on the coolant tank, to the expansion/recovery tank down inside the passenger side wheel well, was old rotten and wasn't airtight. That would be the most obvious and simplest cause.
If the above hose is in good shape and the connections at both ends are airtight, next easiest candidate would be a weak/old radiator cap on the coolant tank.
If the radiator cap checks out good, well, it starts getting "fun" and expensive from there chasing down leaks.
NAPA has a rather good Mityvac coolant pressure testing kit, with various adapters for testing both the coolant system and radiator cap for most vehicles, for about $50. I picked one up about 2 or 3 months ago, and it worked quite well on both the 87 and the Jeep Liberty diesel.
__________________
Just say "NO" to Ethanol - Drive Diesel
Mitchell Oates
Mooresville, NC
'87 300D 212K miles
'87 300D 151K miles - R.I.P. 12/08
'05 Jeep Liberty CRD 67K miles
Grumpy Old Diesel Owners Club
|