sandfreestyle
NAXJA Forum User
- Location
- Charlotte, NC
Begging for help! I’ve been trouble shooting this cooling problem for months and I just can’t figure it out. I've read countless thread on multiple forums, read repair manuals, read the FSM, laser temp check everything, still can't figure it out
Installed a new 4.7 stroker about a year ago and since then I have been having a very odd cooling system gremlin. When I first start up the car it gets to about 195-200* and it will hold there for about 5 min/miles then it will creep to 210* for another 5min/miles and then start creeping to 225*. It holds there while driving but when start/stop traffic happens it will just slowly creep up. Even with the electric fan it will only hold at that temp or very slowly creep. I can’t figure out why this is happening. Please help me!!!
94 XJ with 4.7 stroker w/ about 1,500ish miles (mainly freeway easy driving)
New 180* t-stat
New temps sensors (t-stat housing and back of block, both reading within spec)
New high-flow water pump
New upper and lower re-enforced hoses
New aluminum 3-row radiator
16psi cap
ZJ fan clutch (working properly via drag when cold and stops spinning when shut-off hot)
97+ aux fan
60/40 coolant mix
Timing is dead on
14.5-14.8 AFR (on the smog rollers)
26lbs injectors @ 50psi (per builder’s specs)
91 octane fuel only
Installed a new 4.7 stroker about a year ago and since then I have been having a very odd cooling system gremlin. When I first start up the car it gets to about 195-200* and it will hold there for about 5 min/miles then it will creep to 210* for another 5min/miles and then start creeping to 225*. It holds there while driving but when start/stop traffic happens it will just slowly creep up. Even with the electric fan it will only hold at that temp or very slowly creep. I can’t figure out why this is happening. Please help me!!!
94 XJ with 4.7 stroker w/ about 1,500ish miles (mainly freeway easy driving)
New 180* t-stat
New temps sensors (t-stat housing and back of block, both reading within spec)
New high-flow water pump
New upper and lower re-enforced hoses
New aluminum 3-row radiator
16psi cap
ZJ fan clutch (working properly via drag when cold and stops spinning when shut-off hot)
97+ aux fan
60/40 coolant mix
Timing is dead on
14.5-14.8 AFR (on the smog rollers)
26lbs injectors @ 50psi (per builder’s specs)
91 octane fuel only