truck wont heat up

[Ranger#1]

it just wont get to the middle it warms up if i put cardbord infront of the rad or stop the fan but other than that nada i just got a new 198 thermostat and that didnt help

 

[snoopdoggie]

If you mean the gauge dosen't reach the mid point of its travel maybe the sender or gauge is bad. Have you taken the water temp directly?

 

[Sasquatch_Ryda]

Does it put out good heath through the vents?

Fan clutch seize up?

 

[jasonl]

What is the temp where you're at? Do you have the proper coolant/water mixture??

 

[niterider]

does the new thermostat have a bleeder?

on the thermostat itself? i bought the "better" thermostat for mine 4.0 and the engine wouldn't warm up and burp. if the one you put in doesn't have a ball bearing or the torpedo bleeder you won't get good heat and the thermostat won't open and circulate coolant. i just did this a month ago. 2 thermostats in 2 days. my '97 only has 45k on it.

 

[Ranger#1]

haven't done a mechanical temp check yet. could be the sending unit but i doubt. it has a proper mix. new thermostat has pin hole. fan is not sized i can stop it. id deff gives good heat through the vents

 

[ShockTherapy]

my 99 does this too, any ideas?

 

[warment]

My brother's 93 runs cool too. Just replaced the thermostat. Gauge is now reading slightly higher, but still on the low side in my opinion.

 

[Ranger#1]

its wird beacuse i always hear of them overheating

 

[Beanmachine7000]

My 4.0 runs cool too... Only gets to the N or Normal (haven't had the time to get real guages yet)... The heat kicks butt though, so I'm thinking it might be the sending unit...