I got a replacement Fuel Sending Unit for my wagon but it looks quite different than the one I pulled off the car. Has any other C-Body or TC wagon owners changed their fuel sending unit and let me know if the one I got will work? The NOS PN 3420850 is shown below. The PN I pulled off the car is #2580625 The two units look quite different. As a matter of fact it appears the replacements switch would be submerged in the fuel.
It doesn't matter if it's submerged; it's worse if the sender is always above the fuel, where the vapor is. It's possible Mopar changed the design for that reason, and even though it doesn't look the same, it should work fine.
the pickup looks like it's in the same spot which is more important. The one on the right looks like every original chrysler sender I've seen. The left one look like an aftermarket
Mopar Johnny - In my original comparison photo the one on the LEFT was the original sending unit. I contacted the ebay seller I purchased the brass float sending unit from and sent him a photo of what I had removed from the car. He went to look at his NOS stock and found the exact same one I had. He had a total of 3 sending units for my car - two of them looked the same as the one with the brass float and the third was exactly the same as the one I removed (with the switch at the top and the black float with the plastic star at the end of it). Apparently Mopar went through several generations of sending units changing the part number along the way. The seller replied that if I wanted the same as my original he'd swap it out for me. I decided to keep the one the seller originally sent since it was an improved 3rd generation unit. Besides it made sense reagrding the the switch being submerged vs hanging in the vapor, but can't figure out what significance the extra bend made. The photo below shows both sending units the seller dug out of his NOS supply.
That's what I first noticed, that the improved design helps prevent starvation during, say, under a hill climb or descent.
Let us know how the swap works out, I have the same job to do this Spring! May also have to repair the tank, and I know they are fun to remove!:banghead3:
lebaron413 - do you have a wagon? If you do you just need to remove a partial rear wheel well cover. It's only held on by 3-4 screws and is located aft of the Left Rear wheel just in front of the filler nozzle. Very simple R/R and can be done with or without removing the rear wheel. Best to remove though as it provides better access.
Yes I have a 66' T&C also. Its been a project for a while, as the motor was shot! it now has a 65' 413 for get up and go, hopefully will be back on the road this year. Thanks for the heads up on the tank removal, much easier than I thought. Do you mind telling who you bought the fuel gauge from? John.
John, those instructions were to replace the sending unit and not remove the gas tank. I was going to remove my tank and get it cleaned out, but decided I wouldn't have to. From what I see and hear, it's not too difficult. Remove the LR wheel Remove the partial wheel well cover to disconnect the fuel line from sending unit Remove the screws at the filler neck (under the cap) Remove the strap that holds the tank and it should come right out. I hear it's a snug fit so don't expect it to fall right out. Sending Unit On eBay look for eBay member furygt and send him a message. His name is Bill - really nice guy! Both photos below are NOT EXACT representations of our wagon, but you'll get the idea. For the 1st photo you'll need to locate the object indicated by the hand marked arrow (PANEL 23-34-5). The photo represents the RR where the spare tire is located - whereas you'll need to look for a similar panel on the LR directly behind the wheel. There may be a lot of mud etc so look for the screws. For the 2nd photo make sure you have the CLIP (14-72-5). It's a grounding ciip that bridges over the short HOSE (14-89-57). It clips on the fuel output line on the sending unit and goes across/over the short piece of rubber fuel line and clips onto the chassis metal fuel line. The way the sending unit tells the dash guage how much fuel there is via an electrical circuit. The strap makes the ground for this circuit. If your car is missing or needs replacement, the clip is available on ebay if you need one (See eBay item number: 311197425385) or you can get creative and run a jumper wire from the clean area of the chassis fuel line to the sending unit output line using a couple of hose clamps. It would also be good to replace all the fuel hoses as well. Mine are still pliable, but I'm changing them anyway - after all they're 50 years old and won't do well with the type of gas we have now so use the rubber hoses used for fuel injectors.
The factory service manual for the 68 T and C I used to have said to unbolt and lower the rear leaf spring to get enough room to remove the fuel tank. I never did it so don't know how much room there really is.
