Not getting up to temp?
So after my motor swap in my 94 zj I noticed it never seemed to get up to temp. Ran fine, so I figured it was just how that motor ran. Was riding around in the snow yesterday and got a check engine light. One for low alternator output and one for the engine not getting up to temp. Low alt output is because I need a new belt. What would cause the engine to not heat up? Were talking like its running at 100-120. Motor is a 4.0 that has been slightly bored and has an unknown cam. Also started having a problem where after running on the hwy for 15 mins it starts skipping and bogging down. Only when doing 65+, doesnt do it when riding the backroads. Problems connected?
|
Improper thermostat? Air in the system?
|
Originally Posted by firebane
(Post 3456740)
Improper thermostat? Air in the system?
|
Originally Posted by JSJJ388
(Post 3456741)
Even when I ran my old motor with no tstat (temporarily) it still got up to temp, just slowly. I drove around for 3 hours yesterday in the snow and it never broke 120.
Sure, it's possible for a motor to get to normal operating temperatures without one, but I'd guess it was when it was warmer out. |
Exactly! Without a thermo or with one stuck open, the coolant is loosing too much heat from the cold air. Put a good 195* Stant Superstat in it and try it again. The PCM needs 195* to adjust the mixture properly. Without it, you're running rich on a cold engine. :yawn::sleep1:
|
Thanks yall. Ill get a tstat and see what happens.
|
All times are GMT -5. The time now is 03:55 PM. |
© 2024 MH Sub I, LLC dba Internet Brands