Mercenary
NAXJA Forum User
- Location
- British Columbia
Hey there folks. My 92 4.0L takes forever to reach operating tempurature. It usually will take about 10-15 minutes of driving for it to get up to temp. If it is really cold out (below zero celcius) it rarely ever makes it off the 40 degree peg on the guage. I am thinking that perhaps the t-stat is screwed (failed open) and it isnt allowing the engine to reach prime operating temp. Any other ideas or testimonies of the same problem?