Pull all the grounds and clean them. I know it showed good continuity, but it eliminates on thing on the list. Make sure all the connection are good in the connectors. Had a LM that had spread terminals.Originally Posted by 82 Rampage
Pull all the grounds and clean them. I know it showed good continuity, but it eliminates on thing on the list. Make sure all the connection are good in the connectors. Had a LM that had spread terminals.
Bryan
86 GLHS #161, 2016 Impala
SDAC National Member, SDAC Buckeye Chapter Member
A man has got to know his limitations.....
So at this point you know for sure it's not grounding through the SMEC. As others have said, clean up the grounds. I'm still at a loss with this whole deal though.
Do you have all your grounds hooked up? Injector rail, cylinder head, trans. Also make sure the ground straps are installed that connect the engine to the body, and make sure the battery negative terminal is grounded to the body also, not just to the engine.
How are you manually applying the ground? Via back-probing with the smec plugged in still? Or with the smec unplugged? Sounds like the terminals on pin 57 are not making a good connection with the smec, it's the only thing that makes sense at this point.
Back probing with it plugged in, looked @ the pin in the connector, it looks better than all the others around it. Does that connector come apart or the pins just latch down in it?
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Maybe i am a bit late to this thread to be saying this now but why has noone ever questioned the CTS circuit itself? All it has to do is show some kind of resistance number that is within the huge resistance range of a CTS, and the computer would think it was always hooked up whether it was plugged in or not.
It would be very easy to diagnose this with any kind of scan tool whatsoever. Which, from buying both, i'll tell you that a used scanner that will work on these cars is basically the same price as a spare computer anyway.
If you know how to back 60-way terminals out i would back out one of the CTS circuit wires to cause an open circuit AT the computer and see if it then turns on the fan. That rules out the possibility of the CTS circuit having some sort of high-resistance short that would simulate the CTS being hooked up.
Dont push the red button.You hear me?
Re: Power to fan, not coming on and kick on when CTS is disconnected
Could you also pull the cts and take a lighter to it and should it kick the fan on? I know that sounds crazy but would that essentially simulate that the coolant is up to temp and the fan should kick on right?
Well if the fans not kicking on with it unplugged (infinite resistance) it wouldnt kick on just from heating up the sensor either because all that does is raise its resistance.
Dont push the red button.You hear me?
Yeah that's the kicker, why isn't it coming on when it's pulled. :-\
Joe, the red piece will come out of the plug and then there is a release for the pin. Aside from unwrapping the wires from the CTS area to the plug, I just can't imagine what is causing the issue. If you guys didn't unwrap that area from the lower harness up to the plug, that would be my next suggestion. I know the CTS wires are tied into the harness in a couple of places and since we checked the wires to the SMEC, that would be the last thing to check, in my opinion. It has to be something simple we're overlooking.
Vigo, you coming to SDAC?Franzen is coming, btw.
[SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]
I want to, but i'm going to Canada the next weekend so i'm iffy on over committing myself in time and money. I dont think SDAC is ever going to get any closer to me than this, though!
Dont push the red button.You hear me?
Yeah that's the kicker, why isn't it coming on when it's pulled. :-\
Joe, the red piece will come out of the plug and then there is a release for the pin. Aside from unwrapping the wires from the CTS area to the plug, I just can't imagine what is causing the issue. If you guys didn't unwrap that area from the lower harness up to the plug, that would be my next suggestion. I know the CTS wires are tied into the harness in a couple of places and since we checked the wires to the SMEC, that would be the last thing to check, in my opinion. It has to be something simple we're overlooking.
Vigo, you coming to SDAC?
Well, then that's decided then. Now you are obliged to come!
Be sure to find me, so i can say hi.
Wayne H.
'91 Dodge Spirit ES 2.5L turbo 5spd
'05 PT GT 2.4T HO autostick (RIP)
'89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
'89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
and other cars, trucks and motorcycles
https://www.youtube.com/user/SlugmobileMeanMini
I'll see if i can rope someone into keeping me company for the trip.
Dont push the red button.You hear me?
by any chance is it csx-t 315?
Made good progress this evening, got the radiator mounted and the fan works as it should now. The problem was that the speed sensor was unplugged for some crazy reason.
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Never heard that one before! I'm pretty sure i've had numerous non-working speed sensors in my vehicles and im pretty sure SOME of them were unplugged and i never had this problem. But thanks for the update!
Dont push the red button.You hear me?
this one is csx-t number 303.
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