The C1 & C2 Corvette guys have hashed the obsolete 1513321 sender over pretty good with graphs of the Ohms Vs Temp on OEM and aftermarket senders. Here's a thread on another board about the obsolete Nailhead sender. My solution was to use the 1981+ temp gauge guts with the 76 face, a painted needle, and a later model 8993164 sender. I was installing a 6.5L Diesel with a 3/8" sender hole like the OP in a 1976 chassis. Edit: for 1973-1978 model trucks, see the thread Correct temperature sender and connector for 1973-1978 C/K trucks. The gauge will read slightly high or slightly low depending on who made your sender. The Standard Motor Products TS6, Wells 1T1053, and even AC Delco G1852 "Drop In Replacements" don't have quite the same Ohm range as the original AC Delco 1513321 sender. If your sensor is not listed, a custom calibration can be created with the data provided by the sensor manufacturer. A number of calibrations come pre-installed with the ESP Software package. I have the right ones listed further down.ĪC Delco Part # 8993106 1/2"-14 Thread W Gauges (Tang Connector), AIRTEX / WELLS Part # 1T1049, STANDARD MOTOR PRODUCTS Part # TS71ĪC Delco Part # 8993164 3/8"-18 Thread W Gauges (Tang Connector), AIRTEX / WELLS Part # 1T1008, STANDARD MOTOR PRODUCTS Part # TS76ĪC Delco Part # 1513321 Obsolete 1/2"-14 Thread All W Gauges ( Nail Head Connector) This allows calibrations for a Coolant Temperature Sensor to be loaded or saved. This is a graphic from Letric Limited that shows several open terminal senders that GM used on cars and light trucks in the 1970's. The earlier and later temp senders have a different Ohm range for the sender. There are several different temp gauge senders for the 73-91 squarebodies. probe-less sender, using the same resistance range as the 2258. Water Temperature For water temperature, there is a port located on the right side (passenger side). Be careful, since in ’99 the Chevy truck also used the 4.3, 5.0, and. They probably are.ĪC Delco Part # 8993164 3/8"-18 Thread W Gauges (Tang Connector), AIRTEX / WELLS Part # 1T1008, STANDARD MOTOR PRODUCTS Part # TS76 Looks like the sender on the end in the below picture. GM trucks started using this type of engine in ’99 with the 4.8L and the 5.3L. They could have either 3/8" or 1/2" Tang senders depending on what engine was installed. I did not look up where it might have been if your car has the 4 cylinder Pontiac engine in it.The Packard 56 connector for the Obsolete GM Nailhead sender and the Tang sender are the exact same part. The temperature gauge sending unit would have been located on the drivers side back of the top of the cylinder head unless the car had been re-engine with an earlier engine, one dating from the about the middle 70's which in that case the sending unit would be in the front center of the cylinder head just under something which as I write this hits a senior moment in memory as to what it is. The electrical information is well documented making is some what obvious how AMC did things as they apparently not only purchased a lot of their electrical items from GM but cribbed their manual too in how it is supposed to operate. One of the handier manuals I have is for a 1974 Cadillac. To the point I have lost count of them.įactory Service documentation has a wealth of information included in them so it is difficult for me to understand why when someone sinks a ton of money into actually owning a vintage car why some chump change is not put aside for something that says how it works. I also own a combination of MOTORS and CHILTON manuals that cover a range of cars from 1935 to the early 1990's which does not include the specialty manuals that I have picked up over the years. These readings are from a 1980 AMC TSM, one of 5 AMC service manuals I own and one of 8 or so factory manuals I own. The following is the sending unit resistance value when the gauge displays: I am not so sure what to do next, any help will be greatly appreciated! The current issue is the temp gauge I've located the temperature sending unit and found its resistance to be over 2200 ohms when cold, much higher than expected. Hello fellow amc drivers, I have a 1981 amc eagle sx/4 and am am trying to fix some issues with the cluster.
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