where is the ambient sensor on the 1995 dodge ram with 360 eng
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1995 Dodge Ram 1500 Question: ambient sensor
Answer #1dandd January 15, 2009, 15:18Master
Do you mean the ambient temp sensor for an automatic climate control system? And why are you concerned with it?
Ok now we have some more information. This is not the ambient temp sensor, this is the intake air temp sensor. If this sensor was defective enough to cause a running problem, it will usually flag a Check Engine Light Code, but not in all cases.
Does your Dodge blow black smoke when it is cold? Does your Dodge use a lot of gas? Does the Check Engine Light come on while driving the van?
It could be few things causing this. It could be an idle controller not working properly, it could be a vacuum leak, it could be a dirty throttle body or a bad coolant temp sensor or other things. How does it idle when you turn on the A/C or when you are turning the steering wheel when your are parking cold and hot?
How well does your heater work? What I am getting at here is if your thermostat is stuck open, your car will run very rich and stall and eat gas when it is cold. You live in cold climate and this makes the situation even worse. Do both the upper and lower radiator hoses get hot when your van is warmed up?
Ok, your heater works fine. This is good. Do you know of a good mechanic( who is reasonable ) who can check your Coolant temp Sensor readings and your Intake Air temp sensor readings with a scanner. Have him/her check for any vacuum leaks as well. I am assuming that your van is in good tune-up shape with good plugs, wires, cap-rotor etc. Sometimes a shop will diagnose a problem and then you can replace the part(s). I do this for people with Emission Inspection Failures on occasion. By the way, usually both of these are located in the Intake Manifold. They are usually not very expensive parts. ( $20 or so )and can be purchased at a good parts store.
Look at the Oxygen Sensor when it is warming up. Is it reading high (.900+ ) or low (.100-200). Also, be sure to note how long it takes for the van to go into "Closed Loop". The fact that it is surging sounds like fuel management condition. ( too rich/too lean) Best of luck. I will be in the office on Friday if you have any more questions.
Replyrodey, January 15, 2009, 15:29Rookie
we think it is makeing the truck run bad when cold
Replyrodey, January 15, 2009, 15:32Rookie
when truck starts to warm up it runs fine ?????
Replyrodey, January 15, 2009, 15:47Rookie
check engin light never comes on and truck gets up to normal temp and runs great and some times it want to stall
Replyrodey, January 15, 2009, 15:54Rookie
have not seen the black smoke but yes it likes gas
Replyrodey, January 15, 2009, 16:06Rookie
that is when it wants to stall and some times just driveing down the road it wants to quit running and then comes right back on
Replyrodey, January 15, 2009, 16:14Rookie
heater works fine nice and hot in that truck or i can turn it down and nice and cool
Replyrodey, January 15, 2009, 16:16Rookie
but will check on that hose
Replyrodey, January 15, 2009, 16:26Rookie
let me back up a little when the weather was a little warmer it would run fine in the morning but now that the weather has ben cold it has a bad miss untill it starts to warm up
Replyrodey, January 15, 2009, 16:28Rookie
rpm goes up and down till it gets warm then it will run great
Replyrodey, January 15, 2009, 16:56Rookie
yes every thing is new on truck wires cap rotor plugs but will get that scanner on there soon ....thank you very much for your help.....joe
Answer #2Johnny Mopar January 15, 2009, 18:52Master
The Ambient temperature sensor and mounting bracket are secured with a screw to the upper radiator support, just to the driver side of the hood latch and behind the radiator grille Temperature Sensor Remove/Install
Unplug the temperature sensor wire harness connector.
Remove the screw that secures the temperature sensor and mounting bracket to the radiator support and remove the sensor.
Reverse the removal procedures to install. The Ambient Temp Sensor is for the temperature reading on the overhead console
Replyrodey, January 16, 2009, 06:22Rookie
boy oh boy that is why we could not find that sensor on the intake that parts guy gave us the wrong one we needed air intake sensor not the temp sensor....thank you very much for your help....joe
Replyrodey, January 17, 2009, 13:07Rookie
good news guys the coolant temp sensor was bad truck runs great now/ and thank you for all your help you guys are great....joe