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Junior Member
- Joined
- Jun 25, 2016
- Posts
- 2
- Reaction score
- 0
- Ram Year
- 2007
- Engine
- 4.7 Flexfuel v8
I bought this 1500 5 weeks ago. 73k miles. 3 weeks ago I had my mechanic go over it bumper to bumper. No problems: in fact they were impressed with how well it has been maintained and what a great deal I got. I figure it's a 4x2 quad cab and the dealer had sat on it a long time, because who wants a 4x2 right.
OK, so why am I here today. I've worked on vehicals since before I could legally drive, but I'm old enough to admit I don't know everything, in fact I'm old enough to say I don't know anything... Lmao.
You know when your in a three hour jam up on the interstate, it's 90 degrees and you don't idel you engine out move slowly with your air conditioning because you'll over heat. Well that's my issue that started this morning, but it's driving through town in normal moving traffic.
Prior to I drove 20 miles at highway speed with a couple stop signs. Got into town about 20 minutes and check gage light came on. Water temp gage was at top black line. Turned off air, pulled over let engine run, temp held steady did not climb or hit red line. I watched gage as water exchanged- gage dropped about 1/8. Opened hood, bumbed heal of hand on Top, front exposed top areas of radiator until I could tell I could hold my hand on it and it was barely warm. Drove through town without air, temp continued to drop to 3/4 hot. Stopped 45 minutes for errands, temp at less than 1/2. Drove 15 minutes through town with Air ON. Temp goes back up to top non redline line. Hit highway at 65 mph with Air ON temp drops below 1/2 heat. Drive 20 minutes. Heat only changes enough on gauge to notice water exchanges. Drive through neighborhoods 40-25 mph with Air ON, 7-10 minutes. Gauge goes to to again without redlining.
I've never had this exact problem before. I've had thermostats partially opening, broken part open. It never caused these symptoms.
Read on line that a plugged radiator would have the exact opposite effects. Don't see the water pump causing his. Fan seems to be operating properly.
Sitting in drive, I did get the radiator hot to the touch.
I'm leaning towards a partially functioning thermostat but I need your input. Thank you.
OK, so why am I here today. I've worked on vehicals since before I could legally drive, but I'm old enough to admit I don't know everything, in fact I'm old enough to say I don't know anything... Lmao.
You know when your in a three hour jam up on the interstate, it's 90 degrees and you don't idel you engine out move slowly with your air conditioning because you'll over heat. Well that's my issue that started this morning, but it's driving through town in normal moving traffic.
Prior to I drove 20 miles at highway speed with a couple stop signs. Got into town about 20 minutes and check gage light came on. Water temp gage was at top black line. Turned off air, pulled over let engine run, temp held steady did not climb or hit red line. I watched gage as water exchanged- gage dropped about 1/8. Opened hood, bumbed heal of hand on Top, front exposed top areas of radiator until I could tell I could hold my hand on it and it was barely warm. Drove through town without air, temp continued to drop to 3/4 hot. Stopped 45 minutes for errands, temp at less than 1/2. Drove 15 minutes through town with Air ON. Temp goes back up to top non redline line. Hit highway at 65 mph with Air ON temp drops below 1/2 heat. Drive 20 minutes. Heat only changes enough on gauge to notice water exchanges. Drive through neighborhoods 40-25 mph with Air ON, 7-10 minutes. Gauge goes to to again without redlining.
I've never had this exact problem before. I've had thermostats partially opening, broken part open. It never caused these symptoms.
Read on line that a plugged radiator would have the exact opposite effects. Don't see the water pump causing his. Fan seems to be operating properly.
Sitting in drive, I did get the radiator hot to the touch.
I'm leaning towards a partially functioning thermostat but I need your input. Thank you.
