20 Most Recent 1997 Buick LeSabre - Page 4 Questions & Answers

Hard Start Checks Action Definition: Engine cranks OK, but does not start for a long time. Does eventually run, or may start but immediately dies. Preliminary • Refer to the Powertrain On Board Diagnostic (OBD) System Check . • Refer to Important Preliminary Checks . • Refer to Visual/Physical Checks . • Search for bulletins. Sensor/System • Check Engine Coolant Temperature (ECT) sensor for being shifted in value. Connect a Scan Tool and compare the Engine Coolant Temperature with the Intake Air Temperature on a cold engine. The ECT and IAT should be within ± 3°C (5°F) of each other. Check the resistance of the ECT sensor if the temperature is out of range with the IAT sensor. Refer to Temperature vs Resistance . If the ECT sensor resistance is not within the specification, refer to DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage or DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage . • Check the throttle body inlet screen for foreign objects or damage that may affect the MAF sensor airflow sample. Refer to Throttle Body Assembly Replacement . • Use a scan tool in order to check the IAC operation. Refer to Idle Air Control (IAC) System Check . • EGR system. Check the for the following conditions: - EGR pipes and adapter for vacuum leaks. - Remove the EGR valve and check for a stuck open pintle. Refer to Exhaust Gas Recirculation Valve Replacement . Fuel System • Check the fuel pump relay circuit for proper operation. Refer to Fuel Pump Electrical Circuit Diagnosis . • Check for incorrect fuel pressure. Refer to Fuel System Pressure Test . • Check the fuel injectors. Refer to Fuel Injector Solenoid Coil Test . • Check for fuel contamination. Refer to Alcohol/Contaminants-in-Fuel Test . Ignition System • Check for proper ignition voltage output by using the following steps: - Clip the spark tester J 26792 to engine ground. - Connect one end of a spark plug wire to the spark tester while leaving the other end of the spark plug wire to the coil being tested. - Connect one end of another spark plug wire to the other coil tower. - Connect the other end of the spark plug wire to ground. - Crank the engine while observing the spark tester. A crisp blue spark should be observed. - Repeat the above steps for each coil. • If an adequate spark is not present at the coil(s), check for the following conditions: - Coil(s) - Cracks, carbon tracking/arcing, or a resistance value outside the specified range. Coil Resistance 5000 - 8000 ohms (5K - 8K ohms) - Spark Plug wires • signs of arcing/cross • cracks • carbon tracking • firing • plug boot damage • pinched or improper routing • high resistance - Spark plug wire resistances should measure less than the specified value. VIN 1 Spark Plug Wire Resistance 7000 ohms (7K ohms). VIN K Spark Plug Wires Resistance 10000 ohms (10K ohms). Important: Spraying the secondary ignition wires with a light mist of water may help locate an intermittent problem. Ignition components will arc to ground when a secondary component is malfunctioning. - Defective module. - Ignition System Wiring - Loose ignition module feed or ground connection, or damaged system wiring. • Remove spark plugs and check for the following conditions: - Fouled plugs - Cracks - Wear - Improper gap - Burned or damaged electrodes - Improper heat range or reach • If spark plugs are gas or oil fouled, the cause of the fouling must be determined before replacing the spark plugs. Engine Mechanical • Excessive oil in combustion chamber-Leaking valve seals. Refer to Engine Mechanical. • Low cylinder compression. Refer to Engine Mechanical. • For incorrect basic engine parts. Inspect the following: - Cylinder heads - Camshaft and valve train components - Pistons, etc. - Refer to Engine Mechanical.

When you say fan do you mean the blower fan for heating/cooling?

Wheel aligned must be done on a special machine and any spec it subject to front end wear and can be adjusted for that, so base line specs are not set in stone and the job must be done on a computerized optical alignment machine.

It should be located in the line that attaches to the accumulator.

Auto part stores will run a diagnostic for free as long as you can get your car there, it not, they may rent one. After replacing bad sensors, see where you're at, a tune up with plugs, wires, cap, rotor, air and fuel filters if needed, check them out first. Start with the sensors and go from there. Make sure your ground connections are solid with no corrosion, frayed wires or loose connections.

The warning light means the computer is not accepting the chip in the key as being the right key. Could be a problem with the key or the sensor in the lock cylinder, or the anti-theft system.

Sorry we do not have these diagrams.

Spark plug gap from factory is 0.60; Here is the url to verify. How do you Change Replace or Install Broken 1992 1999 Buick LeSabre Spark...

Eric, The TTC Torque Converter Solenoid is located behind the side cover which has to be removed to access. I will post links for you. "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." http://i33.photobucket.com/albums/d61/bon2k/misc5/DSC01802.jpg 1997 Buick LeSabre TCC sensor location Google Search Trans Troubles Hard shifting gt frothy fluid Drivetrain 98 Buick Park Ave Ultra 3800 Series II Input and Output Speed Sensor...

The filter is mounted on the frame rail under the car but in my experience the filter will never cause that. It is a high flow system.

It should be attached to the back of the sound insulator on the driver's side.

Could be zillions of things. A fuel pressure gauge is the first check normally. It could be the purge valve is bad so tank builds up vacuum. Opening gas cap would fix that temporarily. Could be clogged fuel filter. Could be EGR valve. The flashing light means you should let some auto parts place read the codes for you for free.

Could be a lot of things ! It could be ignition related or fuel delivery problem . Would have to test to say what is wrong for sure . Pull plug wires off one coil an crank the engine , turn the key to the start position. Do you see an hear a spark ? Buy yourself a fuel pressure gage an hook it up to the fuel rail test port an check fuel pressure . Could have a ignition control module problem , bad crankshaft position sensor , Fuel pump ,plugged fuel filter . Have you ever replaced spark plugs an wires , air filter , fuel filter ?

Did you check for codes?When you stop.

Hi Prentice, Im AL the owner of Big As Auto Repair. Prentice, the Throttle Pedal Sensor is located in the gas pedal that your foot is on. If you will notice there is an electrical connector on the pedal assembly. That's the sensor. If it doesn't have an electrical pedal then it's mounted on the throttle body. Hope this helps and please visit my auto-repair-website at: http://www.bigasautorepair.com/

EVAP vent solenoid problem. Probably stalling from fuel vapors making mixture over rich . Have EVAP solenoid tested as it or the PCM can be bad.

For the most part you will find you fuses either under the hood located on the fender or else under the dash on the driver side.

The transmission will not shift if the module is bad. I am not a transmission guy but a lot of the transmissions have electric switch rather than vacuum no days so be sure to check on the trans. in your vehicle.

You should look on the passenger side in the rear of the casting for the block and the casting number and the cubic inch displacement will be there. The casting number is used at the foundry when the block or case is poured.