I put a wrench on it and it seemed like a 15/16 but i couldnt get a deep one on it. Would like to know before i go and buy a bunch of different sockets. Thanks

 

I think it might be a 13/16, such as the IAT sensor, but I am not 100% sure.

 

Ok, just checked on mine...not 13/16...still not sure of the exact size. I tried a 1 1/4, but it wasnt a deep socket, but it "looked" like it would fit. Your best bet would be to buy a couple of sockets around that size and just return the ones that dont fit. Sorry I couldnt be of any more help.

Hunter

 

Ask to see one at the parts store/dealer and fit it for size then.

 

what does the map sensor do, and what is it. new at diesel trucks, 3500 2000 dodge 4x4 cummings.

 

The MAP sensor is the Manifold Air Pressure sensor that detects the pressure in the intake to feed the computer to allow for proper fueling.

 

I just pulled and cleaned my IAT sensor this past weekend. Directions I got from dodgeram.org said 13/16. Nope, mine was a 21 or 22mm (can't remember), and it took a deep well socket.

MAP may be metric as well, and should require a deep well socket to seat correctly also.

Matt

 

I use a regular spark plug socket for the IAT sensor. Not the 5/8 but the large one.

 

http://www.dodgeram.org/tech/dsl/sensors/IAT/clean.htm

 

FWIW - only problem with those instructions on my rig is that it tells you the wrong socket size.

Also, I found it much easier to get to by removing the fuel filter housing.

Matt