Restore Peak Performance to Your Vehicle
Is your 1998 Buick LeSabre, or another compatible GM vehicle, suffering from perplexing engine issues? A faulty Powertrain Control Module (PCM) is often the culprit behind problems like a persistent check engine light, poor fuel mileage, rough idling, or even a no-start condition. The PCM is the central computer of your vehicle, orchestrating critical functions of the engine and transmission. When it fails, the entire system’s performance and reliability are compromised. This replacement PCM, part number 16236757, is the definitive solution to get your vehicle running smoothly and efficiently again.
Diagnosing a Faulty Powertrain Control Module
Identifying a failing PCM can be tricky, as its symptoms often overlap with other component failures. However, if you’re experiencing a combination of the issues below, it’s a strong indicator that your engine’s computer needs attention. A failing module can leave you stranded and lead to more significant damage if not addressed promptly.
Expert Pro Tip
Expert Pro Tip
Before condemning your PCM, always perform a thorough check of your vehicle’s battery, alternator, and all main power and ground connections. A weak battery or a corroded ground wire can cause erratic voltage, which can mimic the symptoms of a failing PCM and even damage a new replacement unit. A simple voltage test can save you time and money.
Common Symptoms of PCM Failure
- ✔ Check Engine Light: The light may be on constantly or intermittently, often with communication-related error codes (U-codes) or multiple, unrelated sensor codes.
- ✔ Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, engine misfires, or rough running conditions.
- ✔ Reduced Fuel Economy: An incorrect air/fuel mixture controlled by a failing PCM can cause your vehicle to consume more fuel than usual.
- ✔ Transmission Issues: The PCM also controls transmission shift points. You may experience harsh shifting, delayed engagement, or getting stuck in one gear.
- ✔ Intermittent Stalling: The engine may stall for no apparent reason, either while idling or driving.
- ✔ No-Start Condition: In severe cases of failure, the PCM may not be able to properly control the fuel injectors or ignition coils, preventing the engine from starting at all.
The Plug-and-Play Solution: A Programmed 1998 LeSabre PCM
Our process eliminates the guesswork and costly dealership visits. This isn’t just a part in a box; it’s a comprehensive solution. We program this 1998 LeSabre PCM with the latest GM-certified software updates specifically for your vehicle using the VIN you provide. This ensures that when the module arrives, it’s ready for installation, communicating perfectly with all the other modules and sensors in your car. This VIN-specific programming is critical for proper function of the engine, transmission, anti-lock brakes, and security systems.
Guaranteed Fitment and Compatibility
This module, identified by part number 16236757, is a direct replacement for a wide range of GM vehicles. It is also compatible with the following service numbers: 09356741, 9356741, 9357034, 9357440, and 9366314. Please verify your part number before ordering to ensure a perfect match.
GRAND AM 98 Electronic Control Module; 6-191 (3.1L)
LESABRE 98 Electronic Control Module; (6-231, 3.8L)
CUTLASS 99 Electronic Control Module; (LH center dash), ID 16236757
PARK AVENUE 98 Electronic Control Module; (6-231, 3.8L)
VENTURE 98 Electronic Control Module; (6-207, 3.4L)
ALERO 99 Electronic Control Module; (LH center dash), 3.4L, ID 16236757
RIVIERA 98 Electronic Control Module; (6-231, 3.8L)
CENTURY 98 Electronic Control Module; (6-191, 3.1L)
SKYLARK 98 Electronic Control Module; 6-191 (3.1L)
GRAND PRIX 98 Electronic Control Module
GRAND AM 99 Electronic Control Module; (LH center dash), 3.4L, ID 16236757
GRAND AM 99 Electronic Control Module; (LH center dash), 3.4L, ID 9356741
ACHIEVA 98 Electronic Control Module; 6-191 (3.1L)
EIGHTY EIGHT 98 Electronic Control Module
SILHOUETTE 98 Electronic Control Module; (LH engine compartment)
FIREBIRD 98 Electronic Control Module; 6-231 (3.8L)
MALIBU 98 Electronic Control Module; 6-191 (3.1L)
GRAND AM 99 Electronic Control Module; (LH center dash), 3.4L, ID 9366314
ALERO 99 Electronic Control Module; (LH center dash), 3.4L, ID 9356741
INTRIGUE 98 Electronic Control Module
LUMINA CAR 98 Electronic Control Module; (LH engine compartment)
GRAND AM 99 Electronic Control Module; (LH center dash), 3.4L, ID 9357034
BONNEVILLE 98 Electronic Control Module
GRAND AM 99 Electronic Control Module; (LH center dash), 3.4L, ID 9347440
CAMARO 98 Electronic Control Module; 6-231 (3.8L)
MONTE CARLO 98 Electronic Control Module
ALERO 99 Electronic Control Module; (LH center dash), 3.4L, ID 9357440
REGAL 98 Electronic Control Module
TRANS SPORT 98 Electronic Control Module; (LH engine compartment)
Frequently Asked Questions
Expert Pro Tip
Before condemning your PCM, always perform a thorough check of your vehicle’s battery, alternator, and all main power and ground connections. A weak battery or a corroded ground wire can cause erratic voltage, which can mimic the symptoms of a failing PCM and even damage a new replacement unit. A simple voltage test can save you time and money.