Buick Cars & Trucks - Popular Questions, Answers, Tips & Manuals

Hi Joe Not easy. Tear down and check. https://www.google.com/search?q=1999+Buick+Lesabre+check+for+intake+manifold+coolant+leak ..

Here are some possibilities you can test yourself. But if none of them resolve your issue, you may need to consult a professional mechanic. Jeff Armer seems to have supplied even more detail. Just how comfortable you are will such procedures may determine just when you choose to go to a professional mechanic. No Crank or Start: This could be due to a weak battery, corrosion on battery terminals, poor starter electrical connection, bad ground connection, or a faulty starter motor. You might want to check the wires to the starter. If the car starts and runs when you jump the starter from underneath, it could indicate an issue with the starter circuit. Key Won't Release: First, ensure your vehicle is in Park and that the steering wheel is not locked. If the key still doesn't turn, try using a spare key, as the original might be worn-out or bent. If the problem persists, you might need to consult a mechanic or replace the ignition switch. Another method to try is to turn the key to the start position, let it fall back to the run position and leave it sit for ten minutes. Cycle the key off and wait five seconds and it should start. The battery has to be fully charged for this to work. Won't Come Out of Park or Won't Read That It's in Park: This could be related to the vehicle's security system. Running a diagnostic check for codes with a scan tool of both the Powertrain control module/ecu and the Body control module could help identify if any codes are stored. The vehicle should crank over in park or neutral.

What a fabulous name you have :>) This is the full circuit https://www.2carpros.com/questions/buick-lesabre-1998-buick-lesabre-start-circuit More here https://www.google.com/search?q=1999+buick+lesabre+starter+relay+wiring+diagram ..

Question edited for clarity. Question moved to model category. It sounds like the relays are permanently closed circuit, so the contacts are fused together and the solenoid coil inside is burning up. It can also burn up the female contacts in the base. Test and swap them out, before the fire. Take the leads of the multimeter and connect them across the coil terminals of the relay. For a normal coil, the multimeter should read anywhere between 40? to 120?. If the coil is damaged i.e., it is open, the meter shows out of range and you have to replace the relay.

How To Test A Relay With A Multimeter? - ElectronicsHub USA

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Take your Rainier out for a drive and see if the cruise control still works. If it does, the VSS is likely fine. If not, the VSS could be the culprit (Vehicle Speed Sensor). Cruise control also depends on throttle position. Ensure that the throttle body and related components are functioning properly. Examine the wiring going to and from the VSS. Look for any damaged or frayed wires. The most common reasons for cruise control malfunction are failed control modules, faulty sensors, or switch issues. While you've already replaced the brake switch module, it's essential to verify that it's functioning correctly. Additionally, check other control modules related to the cruise control system. While you've already replaced the brake switch module, there might be a separate cruise control module. Inspect this module for any signs of malfunction. Powertrain Control Module (PCM): The PCM monitors the signal circuits of the cruise control switches to determine when to capture and maintain the selected vehicle speed. It uses the throttle actuator control (TAC) module motor to control the vehicle speed. That would be something to check. Visually check cable connections and for corrosion. A multimeter can check the battery which can affect the PCM. Sometimes, disconnecting the battery to clear any fault codes can resolve cruise control issues. Possibly that might work even though you see no fault codes.

This seems to to be an issue with some Buicks. I don't think Buick have a specific fuse for the back up lights and the 2005 to 2007 Rendezvous models had a relay for those lights. OK. Start with the simple and silly stuff first. Check the bulbs and the sockets they fit into. It could be a blown bulb or there is dirt and corrosion on the contacts blocking the electrical current to the bulb. Using a multimeter set to DC volts test the bulb socket for power to the bulb. With the Park brake ON, the Ignition ON and the Engine OFF selecting reverse should turn the back up lights on to test for power. If no power to the light fitting next move to the switch on the Transmission the shifter operates when you select reverse. I'm not sure where it is on the Rendezvous Transmission, You might get lucky and it'll be screwed into the housing next to the actual shifter.

P1811 is for maximum shift adaptation and long shift detected. The possible causes are long - clogged transmission filter cut seal on transmission filter low or burnt fluid 1-2 accumulator faulty 2-3 accumulator faulty 3-4 accumulator faulty valve body spacer plate damaged pressure regulating solenoid damaged pressure regulating valve damaged fluid pump faulty restriction in hydraulics of transmission 1,2 or 3 clutch damaged forward band burned or broken torque converter clutch broken The first step is to check line pressures with scan tool and transmission pressure gage, then with scan tool test the pressure solenoid. If pressures are low and pressure solenoid test good, then transmission is pulled and torn down to inspect and repair as needed, which is usually a complete rebuild in this case.

Question edited to add Translation. We only speak English on this North American website. https://translate.google.ca/ Page 105. Make sure they are turned on at the dimmer. https://www.dezosmanuals.com/wp-content/uploads/2021/07/1994-Buick-Regal.pdf ..

A 2004 Buick LeSabre uses refrigerant called R134a. The amount of refrigerant needed should be noted under the hood, but may not be. Whenever the refrigerant is recharged, a specific amount of PAG 46 oil will also need to be used, to lubricate the compressor.

Stop throwing parts and money at it, take to repair shop

Have you checked your amplifier?

The float arm inside the tank is sticking. You would need to remove it, make sure it is free and perhaps bend it left or right a bit, but not up or down as that will change the level reading. https://www.google.com/search?q=1999+Buick+Regal+LS.+Gas+gauge+is+stuck ..

This will help; https://www.youtube.com/watch?v=FZnC1OakYn0

Okay, for starters you're going to need a Phillips screwdriver, now you have to put each wire on the right terminal.First identify the proper orientation of the cap, it only goes one way, look for the tag on the cap that must fit into the notch in the housing align the old and the new caps remove the wires one by one from the old cap to the new cap then use the screwdriver to turn each of the four retaining lugs you must push down the screwdriver and turn them CCW about a quarter to a half turn the app should come off the rotor is there underneath remove the two screws and install the new rotor it only goes one way. Put the cap on making sure it fits into the notch. The lugs should go back in easily if the cap is on right way, if not you would have to feel for it. Good luck..... ????

What are the oxygen sensors or fuel ratio sensors readiing when acting up ? The temperature sensors , coolant and intake air readings as it is acting up would be helpful information too .

Not all models are fitted with a GPS or a SAT-NAV. If there is one fitted there will a button on or next to the centre screen on your dashboard.

Conversion kits to passive suspension

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These ideas seldom work because the radio is controlled and monitored by the BCM computer. All your warning chimes and indicator beeps come from the BCM and are played through the audio system. The yellow is the live for the backlight. YE Backlight Lamp Control https://www.google.com/search?q=2008+buick+lucerne+radio+wiring+diagram ..

Question edited for clarity and spelling. Question moved to model category. Ideas in the link, but the easy way is to use the spare key. All cars come with 3 sets. Or an Auto Locksmith. https://www.google.com/search?q=buick+lacrosse+keys+locked+in+car ..

There is no ECM behind the right passenger kick panel, where do you get your info. from Don? This vehicle has a PCM - powertrain control module, controls transmission an engine function. And it's located -Powertrain Control Module (PCM) (LZ9/LGD) Front left side of the engine compartment, inside the air cleaner housing And if Engine Control Module (ECM) (LD8/L37) Front left side of the engine compartment, inside the air cleaner housing it does have a ECM - it's located in the same place. There is no computer - control module behind the right kick panel .