Buick Cars & Trucks - Recent Questions, Troubleshooting & Support

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I have a 2007 Buick Lucerne CXL the heat won't blow out hot but the AC works just fine. Could someone Please help with this? Thanks

Probably a problem with the HVAC blend door/actuator - imay be stuck in the cold air position.
1/25/2022 2:44:18 PM • Buick Cars &... • Answered 2 hours ago
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1999 Buick Regal Speedometer needle is stuck

Did that work for you? Ours just did the same thing!
1/21/2022 1:52:48 AM • 1988 Buick Regal • Answered on Jan 21, 2022
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2005 Buick lacrosse will shift from park but won't move and just revs rpms and a winding sound procures.

You are in need of a transmission repair. Call repair shops in your area for prices.
1/18/2022 8:39:35 PM • Buick Cars &... • Answered on Jan 18, 2022
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What is making me lose coolant back by the fire wall of my 2005 Buick rainier

Heater core pipes go through the firewall, could be loose clamp on one of those or something related to that.
1/15/2022 2:35:51 PM • Buick Cars &... • Answered on Jan 15, 2022
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Slightly over heating motor on v-6 3800 series 2

Chec fluid level or ucud hava leak. Buy a haynes repairbook for model at partstore. Umay also hav some air in radiator slowin down movement
1/15/2022 4:06:30 AM • Buick Cars &... • Answered on Jan 15, 2022
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04 Buick LeSabre blend door actuator locations?

Check out the videos and also click on the images tab for diagrams. https://www.google.com/search?q=04+buick+LeSabre+blend+door+actuator+locations ..
1/14/2022 9:06:31 PM • Buick Cars &... • Answered on Jan 14, 2022
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Could a half dead battery prevent starter not to engage in a 2001 Buick LeSabre

Cerainly - only way to know for sure is to to do a battery load test. However, replacing the starter without the correct shims can also cause this problem.
1/12/2022 7:57:57 PM • 2001 Buick... • Answered on Jan 12, 2022
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How do you take apart the dashboard to replace the ambient air temperature sensor on a 2007 Buick Lucerne?

If I am not mistaken, doesn't it just go thru the plastic trim at the edge of the windshield? That piece just snaps into the dash cap. You should be able to get under one of the edges and pop it up and then work your way across. This should give you access to replace the sensor.
1/12/2022 7:57:44 PM • 2007 Buick... • Answered on Jan 12, 2022
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Where is the starter located on a 2004 buick rainier

Passenger side
1/9/2022 6:39:38 AM • 2004 Buick... • Answered on Jan 09, 2022
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WHEEL BEARING REPLACED NOW THE AWD AND ATL LOCK LIGHT ARE ON AND MY CAR WONT GET PAST 30MPH, IF I TRY TOO FAST

Buick Rendezvous Service Traction system and Anti-Lock warning ...

forums.edmunds.com > Buick > Buick Rendezvous Jul 15, 2007 - 31 posts - ‎19 authors See Also: Buick Rendezvous FIX Trac Off ABS warning light DTC sensor hub wheel.... For the service traction,ABS,AWD lights it may be a wheel speed sensor (also .... I drive a 2004 Buick Rendezvous with about 120K miles.Missing: atl
1/7/2022 2:48:03 AM • 2004 Buick... • Answered on Jan 07, 2022
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1994 Buick Park Ave won't start

The security system will keep it from turning over on that model. You need to try a 30 minute theft learn. Follow these instructions closely. Try to start the car, then leave the key on for 10 min. Turn the key off, 2 or 3 seconds. Turn the key back on, do not try to start the car this time, leave the key on for 10 min. Turn the key off again, turn it back to run, do not try to start it again, leave it for 10 more minutes. Then turn it off, and then try to crank it. If it is a security problem and it is not the ignition damaged it will crank. Good Luck. Mike From Texas.
1/5/2022 1:37:02 AM • 1994 Buick Park... • Answered on Jan 05, 2022
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2001 Buick Park Avenue: no keys ..it's pass key 111 can it be done???

Question edited for clarity.Question moved to the right Category.No, the anti-theft system is there to stop exactly what you are trying to do. All cars need keys. Take the Registration Document to the dealership and they will get a pair of keys cut for you.
1/3/2022 11:23:40 PM • Buick Park... • Answered on Jan 03, 2022
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1997 buick lesabre cranks but won't start

low engine compression could be the cause, camshaft timing, can be off, or fuel pressure too high, are there any fault codes posted in the PCM
1/2/2022 12:46:08 PM • Buick Cars &... • Answered on Jan 02, 2022
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Remote won't lock and unlock doors in Buick lacrosse

The battery inside of the remote for your car could be low and needs to be replaced.
1/1/2022 10:22:23 AM • Buick LaCrosse... • Answered on Jan 01, 2022
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I have a 2003 Buick Rendezvous and I am trying to locate a schematic for c305 connector so my shop can see it and determine if they want to try to bypass the connector and hardwire the wires.

This is some food for thought. The c305 connector carries the wiring for three major subsystems in your Rendezvous' overall electrical system, the fuel pump, evaporation system and all-wheel-drive. Though this part has been subject to water leakage due to the design of the vehicle, I believe it would be a much better idea to replace the terminals within the connector rather than replacing the entire device and hard-wiring the systems. For one thing, it is entirely possible that hard-wiring could pose problems for your Rendezvous' diagnostic system because the rewiring might start throwing incorrect codes to a diagnostic reader because of a lost connection. For another, it is also entirely possible that when you remove the c305 connector that the new hard-wired connection may not lay correctly and it might become a conduit for leakage. Indeed, that is one of the ongoing problems with the c305 connector. There have been a couple of service bulletins issued for various Buick models built in the 2003-2005 timeframe that cover the connector. The bulletins deal c305 issues such as corrosion caused by the design issue. My suggestion -- and remember it is only my suggestion -- would be to replace the terminals within c305 and after it was all cleaned up and secure, pot it up with non-conductive, waterproof grease so that any potential leakage would no longer be an issue. If you still want to replace the connector, I can forward the diagrams you are looking for.
12/30/2021 9:44:38 PM • 2003 Buick... • Answered on Dec 30, 2021
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How do i straight wire the c305 connector

Please send me these diagrams! You would be my savior today if you see this man! Cannot figure out where kn earth this orange wire goes, had to change my c305 on my 2007 buick rendezvous and there's and orange and light blue wire left with nothing the same color to hook to on the bottom side(that goes to tank)
12/30/2021 8:31:00 PM • 2003 Buick... • Answered on Dec 30, 2021
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