Top 10 2000 Buick Regal Questions & Answers

i would go up and get some HEAT they sell it at any auto store it treats up to 15 gallons of gas. HEAT takes the water and trapes it so that there isn't much water left into the tank and allowes the gas to run like it is supposed to..

TRY THIS. Good luck!

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

Having just repaired this problem in a 1998 Buick Regal, I can tell you that fixing the water leak is actually quite easy. It took me quite a while to track down the source of water, but I have discovered that it comes through the cabin air filter. There is a seal on the passenger side of the cowl (A two piece unit, black plastic, against the windshield) that seals it to the windshield to prevent water infiltration. It is very small and somewhat hard to miss. I took the cowl off to change the filter when I discovered this.

You can make a diverter to go over the air filter under the cowl, or even easier is to use some clear RTV silicone (avalible at any automotive and most hardware stores) and put a good bead on the old seal. When you re-install the plastic cowl, be carefull where it goes against the windshield to make sure you don't "smear" the silicone. After you re-install the plastic retainer hardware, smooth out the bead and clean up the excess silicone(a wet finger and some old cardboard works great). Let it dry and clean up the water in the passenger compartment.

Cleaning up the water is the hard part. Removing the plastic trim around the door (if you grasp the trip peices firmly they just pull up off some metal clips,but they can be quite stubborn) you will notice the carpet just pulls up. At the bottom front corner of the front doors the carpet has a plastic hook that is around one of the trim clips. Lift it off that and the rest of the carpet towards the firewall just pulls up. If it has been a long problem, your carpet may be moldy. Also, the carpet edges and some of the more hidden panel clips are very sharp and may cut you while you are poking around, so be carefull.

Since the water entered through the air filter and right over the fan, you will at minimum want to replace the filter. I had mold and moss growing on mine. My fan also squeels and chirps now, so I know it got wet. Not much to do about that but replace it or carefully lubricate the motor.

In your question you mentioned a door underneath the filter not closing. On my '98 Buick Regal there is no door or valve of any sort. The filter sits right above the fan blades. It is the cowel's job to prevent water from entering this part of the vehicle. I hope this helps you fix your problem.

There is one fusebox behind a panel on the outside of the passenger side dash (must have door open). The main fuse box is in the engine compartment behind the battery.

Here are some possible causes and fixes http://www.obd-codes.com/p0440

it was originally orange dexcool coolant

This is typically related to faulty or disconnected resistors located on the circuit board of the instrument cluster as the odometer does not contain removable bulbs.(it is LED) There are a few how to videos on youtube to replace the bad resistors, and it seems to be the best solution for most who have this problem. The resistors cost around .99 cents for a 5 pack and is sure to save you hundreds of dollars if you can re-solder them them yourself. Here is a link to 1 of the how to vids on youtube for 1997-2004 Buick Regal: http://www.youtube.com/watch?v=84FAjLxoK00

Under the hood, your shift cable is attached to it.

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