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Old 08-16-2007, 12:49 AM   #1
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Default Classic Riviera

Not really classic, it'* a 1991.

I've been lurking for a while around here and I love to hear all the great things to do with this engine. The 3800 has just turned 134000 miles. I've had the car for about 7 months now and am pretty happy with it.

I really enjoy the power I have. It seems like any gear I'm in, and rpm, just put my foot down and it will just ROAR. I can keep up with traffic doing less than 2000 RPMs. The damn thing still chirps the tires at 10mph.

When I bought the car it needed a new O2 sensor and a cam-position magnet. Now its running so SMOOTH. As well as being powerful, its also the most reliable car I've ever owned.

I need help though.

1. Is it normal for these cars to get a little hot? You see, it'* getting to be over 100 degrees here and I'm normally driving around town; when using my A/C it will travel above normal operating temp unless I turn off the A/C or even turn on the heater. It has never over heated though. Problem is solved if it'* cloudy or night time, though. I recently replaced the water pump and thermostat and have ample amounts of coolant in both the radiator and resovior.

2. Before winter is over I need to replace my break pads and resurface my rotors (4 wheel disc breaks WTF!!) The local O'Reilys has life time warentee pads!
-What size torx bit is needed for the mounting bolt on the caliper?
- Any particualr area to inspect on the caliper for our type of cars besides the boot?
-How to I retract the piston on the rear calipers? By hand? I've heard on Honda'* that you have to twist it and push to get the job done.

3. Loob:
-I want to go full synthetic for the tranny fluid. Any body done it? Recommend it?
-I'm using cheap high-milage 10w-30 oil right now, but changing it every 1500-2000 miles. I would like to go with a synthetic blend? Anyone else do that?

here'* some pics:

"The Ranch" (Where my 170 Horses live).
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My Dash
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The Console.


The Console: 2
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My Grille
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The Buick'* back end:
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Old 08-16-2007, 01:26 AM   #2
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Kinda dig the all digi dash!
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Old 08-16-2007, 01:37 AM   #3
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Very neat car. I like it!

As far as your questions, I don't have the knowledge about your generation of car that others have. Give the one'* that know best the time to find your questions and I am pretty sure they can provide guidance.

As far as engine temps, from what I have seen i my own car, is that a combination of heat and humidity seems to make the motor run a little hotter than normal, about 10-15* in extreme conditions. Is your temp guage accurate? How hot is it getting compared to normal? Giving the engine bay and motor a good cleaning might help reduce some of the temps that could be held in by normal engine grime and grease.
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Old 08-16-2007, 11:31 AM   #4
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Are the cooling fans coming on properly? Has the radiator been flushed? If so, it is pretty likely that your 17-year old car could benefit from a new radiator. They are available for about $100 on-line and are fairly easy to install. Another item that will preserve your transmission while additionally lowering your engine temperature, is a transmission fluid cooler like the ones sold at http://www.bulkpart.com
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Old 08-17-2007, 01:08 PM   #5
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I've already flushed the radiator with a chemical and replaced the coolant with 50/50 Prestone Dex-Cool and Water. The radiator was pretty new when I bought the car about 7 months ago.
edit: The cooling fans do work.
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