Tag Archives: Buick

Buick auto repair questions and answers from Dealership mechanics. Read through our growing list of problems solved.


1995 Buick Lesabre Is Loosing Engine Power

I have a 1995 Buick Lesabre and its cutting all power sometimes when turning and at a little incline. Protech: Cutting power how? Electrical power? Or engine power? Engine power it just dies the only engine light on is the abs light. And this only happens when turning the wheels on a slight incline? No when going straight and turning. I’d start by checking for…

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3.8L Buick Burns Oil Between Changes

I have a 2004 Buick 3.8 motor I’m burning a quart and half of oil between changes. I’m not leaking any oil on ground thanks kraig. ProTech: You might want to check the PCV system. If the valve is bad, or one of the o-rings is cut, improperly installed, or missing, the engine will start to burn oil. Thanks I did not know if there…

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What Lube Goes In My Buick Roadmaster Rear End?

What kind of lubricant does the 94 Buick Roadmaster Estate Wagon use in the non-slip differential? ProTech: It uses regular 80-90w gear oil in the rearend, but there is an additive for the limited-slip unit which you can get at any GM dealership. I used a 90 weight but the clutches are sticking, I believe. Do you know what the additive is? P.S. I’m in…

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My 2002 Buick Regal Has ABS And Traction Lights

I have a 2002 Buick Regal and the service vehicle soon, anti-lock and TRAC lights are all lit up. Will a bad throttle position sensor cause this problem? ProTech: A bad throttle position sensor can cause the service vehicle soon light to come on, but it will NOT set the anti-lock light or traction light on. More than likely you have an ABS problem that…

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Cost To Replace Buick 3800 Crank Position Sensor

Hello? I have 2001 Buick LeSabre. I want to replace the crankshaft position sensor. Do you know how much does it cost in terms of labor? ProTech: Which engine do you have in your Buick? V6 3800. It seems it has two CKP sensors, 7x and 24x. I am guessing the 24x is bad. There is only one crank sensor. It produces two different signals.…

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Chevy, Buick and GMC Fuel Gauge Problem

How much does it cost to fix a gas gauge for a Buick Century 2001 model?? ProTech: Are we talking the gauge itself, or the fuel level sensor that controls the gauge? The gauge itself. To replace the gauge you have to replace the entire instrument cluster assembly. That can only be done at a dealership, and is usually around $400 with parts and labor.…

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2002 Buick Rendezvous Battery Has No Power and Won’t Start

I have a 2002 Buick Rendezvous. Yesterday it wouldn’t start, no power to anything. Charged the battery and it started and ran. This morning it started once but the second time same problem. Tried charging the battery and no luck. Checked battery it is good. I’ve been checking fuses and such, a couple times the overhead light will come on when I open the door,…

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Oldsmobile PCV Full Of Oil After Intake Gaskets Replaced

Is a wet and oily PCV valve & housing internally a normal condition on the 3800 V6 or is there something wrong? I just replaced intake manifold gaskets along w/ new upper intake plenum (includes new PCV valve + housing), on 1997 Oldsmobile Regency 3.8, due to gasket failure & coolant in cylinders / crankcase. Oil was changed. Car started up fine with white smoke…

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1994 Buick Century P0341 Cam Sensor Code

I have a 1994 Buick Century v6 3.1 and im having 2 main problems. My first problem is I replaced the crank and cam sensors awhile ago and while everything went fine with the crank im having some problems with the cam sensor. When I got the new one in it gave me a P0341 code so I looked at it and it was faulty…

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Some Blower Motor Fan Speeds Not Working

This one has been a big issue over the years. Many, many times a car or truck will come into the shop with the customer complaining that their blower motor doesn’t work, or only works on high speed, etc. This is usually the case after a blower resistor failure on one or more speed settings. What is happening to them you ask? Well, the resistor…

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2003 Buick Century ABS and Low Trac Lights On Dash

I have a 2003 Buick Century and there are several warning lights that come on at different times when I am driving. the low track light, the abs light, and etc. These lights are all yellow-orange in color not red. I have checked the car several times myself and have had it checked by mechanics also. When we put a diagnostic computer on it there…

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How To Replace Buick Park Avenue Belts

I have a 1996 Buick Park Avenue Ultra that needs both serpentine and super charger belts replaced my questions is, it appears that i have to remove the motor mount or bracket in order to do this, Ive never seen this before or am i just not seeing it clear. thanks for your help, Paul Protech: Yes, that is correct. You have to remove the…

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