1994 Ram D250 will not warm up

From : Annonymous

Q: i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks .

Replies:

From : napalmheart

i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks another possibility is that the thermostat is stuck open. 195f degree thermostat would be normal. otherwise your friendly local parts store counterman should be able to tell you what the stock stat is. ken typo corrected. ko .

From : napalmheart

napalmheart wrote i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks another possibility is that the thermostat is stuck open. 198f degree thermostat would be normal. otherwise your friendly local parts store counterman should be able to tell you what the stock stat is. ken sorry dude if that has a 360/5.9l 13-14mpg is good i get 11 city 14-16 hwy on my 2002 ram1500 mopar v-8 and v-6 engines arent known for the best gas mileage are they oh well you cant have everything! .

From : Annonymous

on mar 17 916 am mpberti mpb...@ec.rr.com wrote napalmheart wrote i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks another possibility is that the thermostat is stuck open. 198f degree thermostat would be normal. otherwise your friendly local parts store counterman should be able to tell you what the stock stat is. ken sorry dude if that has a 360/5.9l 13-14mpg is good i get 11 city 14-16 hwy on my 2002 ram1500 it has the 4.9l v8 in it. but my research tell me that there is only a 1 mpg difference between the the 4.9 and 5.8 liter engine. oh well. but i still dont have a lot of heat. would that point to no thermostat the gauge sits around 1/3 seems low to me. how hard is it to get to the thermostat i believe advance auto parts sells a 195 stant termo should i pick that up thanks .

From : beekeep

on 16 mar 2007 201632 -0700 newworldactor@yahoo.com wrote i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks it may be the heater core or the air control. the heater core can become clogged so no or little water is passing through it. have you felt the heater hoses after it is warmed up beekeep .

From : Annonymous

on 17 mar 2007 075819 -0700 newworldactor@yahoo.com wrote how hard is it to get to the thermostat thanks http//en.wikipedia.org/wiki/dodgeramwagon http//en.wikipedia.org/wiki/dodgeramvan both of these sites show there are two v-8s a 5.2 and a 5.9 im not saying youre wrong w/the 4.9 or that wiki is right but i couldnt find anything on a 4.9 in a 94 ram van if yours is a 5.2 the thermostat can be found tucked behind the alt. at the engine end of the top rad. hose and with a extention on your ratchet you can get to the two bolts .

From : Annonymous

on mar 17 1219 pm samst...@aol.com wrote on 17 mar 2007 075819 -0700 newworldac...@yahoo.com wrote http//en.wikipedia.org/wiki/dodgeramwagonhttp//en.wikipedia.org/wiki/dodgeramvan both of these sites show there are two v-8s a 5.2 and a 5.9 im not saying youre wrong w/the 4.9 or that wiki is right but i couldnt find anything on a 4.9 in a 94 ram van if yours is a 5.2 the thermostat can be found tucked behind the alt. at the engine end of the top rad. hose and with a extention on your ratchet you can get to the two bolts i was wrong. its the 3.9l v6 which for some reason get only 1 more mpg than the v8. must be the 3 speed tranny. ive heard the 3.9l is bullet proof but i guess you hear that about all truck engines. is the thermostat in the same place .

From : Annonymous

on 17 mar 2007 093925 -0700 newworldactor@yahoo.com wrote its the 3.9l v6 which for some reason get only 1 more mpg than the v8. must be the 3 speed tranny. ive heard the 3.9l is bullet proof but i guess you hear that about all truck engines. is the thermostat in the same place front seating area center under engine cover engine end of upper radiator hose mounted in coolant outlet housing .

From : napalmheart

i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks another possibility is that the thermostat is stuck open. 198f degree thermostat would be normal. otherwise your friendly local parts store counterman should be able to tell you what the stock stat is. ken .

From : mpberti

napalmheart wrote i bought a 1994 ram d250 that was a navy van. the problem is that i can only get between 12 and 14 mpg no load. i think the navy people took the thermostat out. so that would make it run rich low heat also and kill my mpg right im in the process of tuning the van up so i will see if the mpg goes up but the temp gauge never gets above 1/3. as soon as it warms up ill get out there to check doesnt look easy to get too a follow up question is what temp thermostat should i use in the d250 thanks another possibility is that the thermostat is stuck open. 198f degree thermostat would be normal. otherwise your friendly local parts store counterman should be able to tell you what the stock stat is. ken sorry dude if that has a 360/5.9l 13-14mpg is good i get 11 city 14-16 hwy on my 2002 ram1500 .