Dash Guage ?'s after Motorcraft Carb Swap - JeepForum.com
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Unread 05-18-2006, 07:15 PM   #1
The Buck
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Join Date: Mar 2003
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Dash Guage ?'s after Motorcraft Carb Swap

I just finished (for the most part) installing a motorcraft carb. Since we have no emissions testing in MI I have pretty much bypassed everything, just have vacuum going to the carb and that's about it (no egr, charcoal canister, etc). However, I have a few dash guage issues.

First, the engine temp guage no longer works. I have circled in this picture what I think is the sensor is or is it the green wire that I pointed to with an arrow?

http://www.imagestation.com/album/pi...?id=2106225040


shown circled in the other picture.

Also, my oil guage before and after the swap read really really high (maxed out). I have changed the oil, is this right?

Also, speedometer always reads 10mph after the swap.


Did I disconnect too much? I still have a bundle of wires, most of which is off the carb.


Also, do I need to do the nutter bypass? Not needed I believe in this case.

Pictures might help for the sensors if anybody has them.

Thanks!!

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'97 XJ, 2" BB in rear, 30" BFG ATs, C4x4 Tow Hooks
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Unread 05-18-2006, 10:30 PM   #2
drexelsteve
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2013 JK Wrangler 
 
Join Date: Sep 2004
Location: Goose Creek SC
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the thing u circled is the port where your heater box gets its vacume source
look where your circle meets the pink wires at the harness, at the top left side of teh circle, that little sensor is the temp sensor, looks like it's unplugged to me
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Unread 05-18-2006, 10:34 PM   #3
drexelsteve
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oil pressure guage fault might be the sending unit, have u replaced it lately? though if its at full max all the time i'd suspect a short to ground of the harness to the sending unit. As for the speedo, it's cable actuated, cable from the cluster to the transfer case, maybe the speedo itself crapped out, the cable crapped out, or the speedo gear inside the transfercase crapped out. If it NEVER moves at all, i'd suspect the speedo itself. Do the nutter if u want, probably won't have any effect though. good luck
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Unread 05-21-2006, 11:16 PM   #4
The Buck
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Thanks for the help, my speedo guage now works and I'm just gonna start plugging wires back in and see what else fires up. Looks like I might need to get a new sending unit for the oil pressure, I haven't touched it yet.

I have been driving it down the road now, just need some warmer weather!!
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