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yup that's what it sounds like I would add a cut off switch to the battery cable so you can disconnect when charging

Let me know how you make out I’ll do the same Thanks 👍

Happy Monday I have a stock 1989 I was wondering if anyone has changed out there rear springs or shocks to soften the ride on the road? Thanks for any input or where to get parts to change out my stock ones

IN

Great video Thanks Im at the point that the video shows and clutch isn’t engaging at 220 so hopefully it’s a bad tdm

I just tested the micro switch on the throttle The switch is normally open and makes continuity when you peg the throttle So I assume the fan should be engaged at 220degees or more when the engine isn’t wide open I just ordered a new TDM mine seems to give 24v all the time to the Cadillac...

Thanks bud I’ll do it tonight

Good call thanks you Can I just leave it unplugged I won’t be going through any rivers lol

The fan was always on when I bought it I tested the psi at the fan clutch and it was 50 New Cadillac valve fixed it psi is now 120 But the fan clutch is getting 24volts still from the tdm when the temp is 220-240

Thanks for the info I’ve had mine since oct Just going through it fixing what isn’t working Even tho it drives me nuts figuring out what’s wrong I love this thing Lol

That’s what I was thinking I’m going to drive it for a while and see if the fan kicks in From what I read it may not kick in in certain driving conditions so maybe it will kick in if I drive it normal without pushing the engine

Thanks for the replay It is definitely engaging and disengaging Now When I unplug the tdm the fan moves and engages and cools back off I’m wondering if the tdm can go bad and send 24v all the time? I thought when I changed the Cadillac valve and now getting the fan to disengage my problem was...

Good morning and Happy New Year On my 1989 M998 my fan was always engaged I replaced my Cadillac valve and now getting 120 psi to fan and it is disengaged all is good runs great but now won’t engage Temp climbs to 240 and I still have 120 psi My sensor is also new my truck was running at 160...

Thank you so much for such a detailed response I’m at the point with diagnostics that if I pinch the return like I get 90+ psi and it works perfect Even tho the Cadillac valve ohms out o think it’s mechanical bad so I ordered one I have 27v going to it from the tdm box so I hope a new one...

I tested the pressure on both side of the vale and it’s 35 so I figured the valve isn’t the problem

Still Having a problem and at a loss on my 1989 m998 I’ve been trouble shooting a problem with my fan always engaged and have got to a point where the psi going to the fan is 35 and the psi from the rack is only 35? the power steering works great Any ideas? Thanks

Good morning Having a problem and at a loss on my 1989 m998 I’ve been trouble shooting a problem with my fan always engaged and have got to a point where the psi going to the fan is 30 and the psi from the rack is only 35? the power steering works great Any ideas Thanks

Good morning Having a problem and at a loss on my 1989 m998 I’ve been trouble shooting a problem with my fan always engaged and have got to a point where the psi going to the fan is 30 and the psi from the rack is only 35? the power steering works great Any ideas Thanks