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Daily weather now getting around 90F degrees by mid-morning Went to check how A/C was functioning to just get HVAC fan on, no cooling at all HVAC set to auto and coldest setting of 60F degree Checked the on-board diags, no DTCs at all for ECM and BCM Also used an OBD-I scanner and also showed no DTCs as all Scanned, the BCM and PIDs clearly show the A/C being commanded on and off cycling Checked Freon, at idle, low is about 40 PSI and high around 230 PSI, weather at the time was 85 F degrees Seems like the clutch of the compressor keeps going on for maybe 30 seconds, then off and keeps cycling this way HVAC screen and buttons seem OK, press auto and stays there, showing high speed for HVAC fan What could the cause be to debug, why clutch commanding on/off ? What else to check and debug ? Thanks
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By DanielAndrew · Posted
1959 Cadillac DeVille Coupe Red RWD Automatic On Ebay https://www.ebay.com/itm/355717617831? -
By DanielAndrew · Posted
1965 cadillac deville convertible On Ebay https://www.ebay.com/itm/285856501077? -
By DanielAndrew · Posted
1971 Cadillac DeVille Coupe Coupe White RWD Automatic On Ebay https://www.ebay.com/itm/404956983218? -
By DanielAndrew · Posted
1967 Cadillac Coupe Deville Convertible 61k miles On Ebay https://www.ebay.com/itm/285842663617?
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I could really use your help with something with my DTS. My throttle body is doing the same thing yours did after cleaning my throttle intake.· 0 replies
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The Fix-It List· 2 replies
This is mostly for my own memory. Help is always appreciated but never expected.
To begin, we have already got some new tires, and I learned at that shop that my rear tire cambers -3 degrees, and the front is bent in a bit. But before I get an alignment, I need new struts all around. *smurf* is getting expensive.
Put in Marvel's Mystery Oil to quiet a lifter tick, and so far, it's not doing that much; need to drive more miles with it. ATF was thrown in too so I can save my Marvel's Mystery Oil.
Next week I need to go and get a tune up; basically, need fuel filter and spark set/distributor.
I am missing some underhood relays from the car. Can't tell what they are supposed to be, but I can bet its all three cooling fan relays.
Current Issues (prioritized):
Lifter noise from the engine Exhaust smelly, and excessive (diagnosed; tune up will fix it) Wheels unaligned, cambering, and could cause tire damage Leaks: puddle on the valve train. Obvious gasket issue. Leak in the back end of engine, but isn't worth the lift oil had never touched the ground, so this isn't too too bad. The oil near the valvetrain is sus though Electrical: Climate Control only turns on sometimes. Looking at wires soon but it could be the panel or BCM. Cruise Control is obsolete. Not switching whatsoever. Fuse, wire, or connector issue? Switch? ABS brake lock and traction will flicker on and off sometimes. Wire issue for sure. A/C service light on; may indicate lack of refrigerant or that the relays are out. Radio disconnected; previous owner wanted to get subs. Little did they know these cars are 50% wire.
Here is what parts Eve, my little devil, needs:
TUNE UP: Fuel filter, distributor cap + rotor, spark plugs + wires. quoted at about $400 Struts all around and alignment. maybe $500? got a rough joint too Valve gasket $20 Lifter (?) Still gotta figure out if Marvel's or ATF can clean it up more, BCM? Still looking into this one, but I'm hearing every 90s Deville owner should keep a spare. Radio wire connector wires need to be connected again and we need to investigate more That is my comprehensive list for my ADD brain. All this figured out in one week. Bought the car ten days ago and she's made me give nothing but attention to her. Hope it's all worth it!
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Hey Jan· 2 replies
I have a friend in his 80s with a 81 Eldorado Barritz his mechanic swapped out the computer loosing the memcal chips any chance you might know where I can help him find either the memcals or a salvage computer?
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