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  1. C

    1990 C4 Power Antenna Mast Retaining nut

    The fix I described has worked flawlessly. Than you for a source for a direct replacement.
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    1990 C4 Power Antenna Mast Retaining nut

    I was unable to find a replacement antenna mast nut so I made one. Works just fine. Parts used were a 1/2" I.D. split bushing, about 1" long, and a 5/8" O.D. flat washer reamed out to closely fit the largest moveable segment of the mast. Center and weld the washer to the bushing. reduce the O.D...
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    1990 C4 Power Antenna Mast Retaining nut

    I need replace my 1990 C4 coupe antenna mast. The antenna nut had failed and is gone. Does anyone have a source for the antenna mast retaining nut or "antenna nut". I have the new mast and it works well but without the nut it simply pops out of the antenna motor tube. Internet searches have...
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    No Crank - Electrical - ('90)

    I'd check the bat ground cable at the chassis connection as well.
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    After the road trip, BIG coolant leak

    There are many posts discussing intake manifold gasket replacement. You should also hear many more suggestions in response to your post. My suggestions are; 1) Make note of every step of the disassembly with particular attention to vacuum hose runs and connections. 2) Clean all gasket surfaces...
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    Intake Manifold Gasket

    I used Permatex Hi-Tack around the water holes. Easy to apply with the self contained brush.
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    S Y S flashing code

    My '90 did the same thing after sitting for over a week. Lazy start then SYS flashing every several seconds. I reading other posts, I found that the SYS flashing can be caused by a low battery. After driving enough to fully charge the battery, and a normal re-start, the SYS did not re-appear...
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    Does someone make an OBD II scanner?

    I just bought an Actron OBD II Pocket Scan at Kragan for $70. It's just a basic scanner but it comes with a CD that contains all of the code definitions. I used it on my '97 Burb and it worked swell.
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    Antifreeze on Intake!

    I had the same problem almost immediately after replacing my intake gaskets. I also had an oil leak at the rear of the manifold. I made two mistakes that caused the problems. 1. I did not apply enough silicon on the "china wall" at the rear of the manifold. 2. I did not apply a sealant around...
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    What job do we C4 owners have?

    Worked for a company named after the "Aviator" for many years until it was sold first to GM and then to Raytheon. Retired as a Project Manager after seeing much of the world on expense account. Not a bad career. Other vehicles include a 1966 F100 hay hauler and a 1945 Case tractor.
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    What exactly is this sensor

    It's your oil temperature sensor.
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    Shiftless Tranny

    Thank you for the suggestions. I drove the car this morning and had no problems. The tranny worked perfectly. I then adjusted the TV cable and drove it again this afternoon. Again, no problems. If the problem recurrs, I'll try the Lucas treatment. :beer
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    Shiftless Tranny

    After driving in traffic for several miles today, my tranny decided to stop shifting normally under a normal load. From a dead stop, it would not shift from low to second below about 3500 rpms and required about the same rpms to shift from second to third. It refused to go into OD. I tried...
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    1990 Seat Material

    My original leather seats are like Loaded 90's. Leather only on the seating surfaces, vinyl on the sides and bolsters.
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    Seat Suspenders

    Does anyone know where I can buy the elastic "suspenders" that support my seat bottoms? Eckler's and Mid America do not mention them.
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    who would thunk

    I changed my ps fluid as well this last weekend. When checking the old fluid, I'd noticed that it appeared thin and dirty. I also noticed the occasional hum from the stering box during low speed parking lot maneuvering. After sucking out the old fluid, I used a lint free rag to clean out some...
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    Driver Seat Rebuild, How Sweet It Is !!

    I pulled my driver's seat bottom (standard black leather seats) to see how difficult it was to remove and found it to be very simple. I'd like to replace just the bottom upholstery as the back is in good shape. Has anyone found a source for just the bottoms? I also noticed that the bottom is...
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    When have you checked your spare tire last...???

    My spare was low but apparently never used. The jack was rusted but servicable. Cleaned everything up, sprayed the jack with WD-40, greased the screw & re-stowed everything.
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    Cruise Control

    I pulled the hush panel and found the switches up under a maze of wires & connectors. One is a vacuum breaker and one is an electrical breaker. They looked OK. I checked the vacuum breaker switch by applying a vacuum and pressing the brake pedel. The vacuum was released. I checked the electrical...
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    How smooth is smooth

    90coupe, I did the same thing to mine shortly after purchase i.e., new ignition parts, to fix a persistent miss at idle and under acceleration. The plug wires were the problem. I asked the question to try to establish a baseline as my other toys are MGs. My 6 cylinder 1968 "C" is very smooth...
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