89 Bonneville SSE in process of tune-up - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-02-2006, 01:06 PM   #1
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Default 89 Bonneville SSE in process of tune-up

I just bought this car a few weeks ago, and I love it! I want to make this last! This car has inspired me to become my own mechanic, and with every little thing I do I feel a difference. The car has 115,000 miles on it and seems to be in good mechanical condition, despite that it may have been alittle neglected.

So, far I have replaced:

Spark plugs
Spark plug wires
PCV valve
O2 sensor
Front rocker valve cover gasket (only place I saw any leakage of oil)
Oil (Dino)
Oil filter
Fuel filter
Hood lifters

With the exception of the oil and oil filter, I believe everything else was original, never replaced. It definitly made a difference in how the car handled after changing those things out. I plan on a coolant flush, and coolant hose replacements next. Also, my service engine soon light is on. Trying to fix that. I will buy the little gadget that tells you the codes. I found one at the parts store, and its only $30.00.

The car runs great, but can run alittle rough while at idle, not terribly though.

I want to make this car a run like new!

-New under the hood
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Old 04-02-2006, 01:08 PM   #2
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haha...very nice yah love your car...but we need pictures of this beautiful thing....!!!

as soon as i get the money i am rebiulding mine from the ground up...
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Old 04-02-2006, 01:25 PM   #3
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On the 89 there is NO need for the code reader, all you need is a paper-clip and the list in Techinfo with the codes listed. I keep a copy in my glove compartment for when I need it, along with a paper-clip, hehe.

Here is the techinfo article with the list of codes

http://www.bonnevilleclub.com/forum/...highlight=code

Here is how to get the codes

http://www.bonnevilleclub.com/forum/...highlight=code


Hope that helps, at least you can save the 30$ and get your codes.
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Old 04-03-2006, 12:15 AM   #4
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Default Thanks for the interest...

I should be getting some pics up soon, so hang in there. And thanks for the info about the paper clip trick, worked like a charm!

I came up with a code 38 - Brake Input Circuit, which I'm not surprised by. I knew that the brakes needed some work. I also came up with a code 41 - Cam Sensor Circuit. I hope that aint serious. The maintance manual that I have says that the easiest way to test my Cam sensor is to use a oscilloscope. There are not to many people with those on hand. Is there any other way to test the sensor? Can Autozone test something like that?
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Old 04-03-2006, 12:39 AM   #5
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I had the code 41 also. I was passing a car and it seems that the cam walked a bit and hit the sensor. Now if it is only the sensor, it is not a big deal to change, if it is the magnet, well you "should" remove the timing chain cover and change the magnet, BUT if you do a search on here you will find that some have changed it other ways.

Now if you need to do the magnet and decide to remove the timing chain cover, it is a great time to check the gears and the chain.

I started with changing the sensor and the code was still there so next was the magnet. I did not do this myself cause I didn't have time and it was winter when it happened and would have had to work outside.
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Old 04-03-2006, 08:16 AM   #6
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Yeah, I read up on the subject (The Magnet). Sounded like a pain in the @ss. I sure would like to get rid of that check engine light though. Do you think it would be ok if I let it go for awhile?
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