Restore Peak Performance to Your GM Vehicle
If you’re dealing with a frustrating no-start condition, a persistent Check Engine Light, or erratic engine behavior in your Buick LeSabre, a failing Powertrain Control Module (PCM) is often the culprit. As the brain of your vehicle’s engine and transmission, when the PCM falters, everything from fuel delivery to spark timing can be thrown off. This isn’t just an annoyance; it affects your car’s reliability, fuel economy, and safety. This genuine, used OEM PCM, part number 09361735, is the dependable and cost-effective solution you’ve been looking for.
We take the biggest hassle out of the repair process. Before this module ships, we flash it with the latest official GM software updates, specifically programmed to your vehicle’s unique Vehicle Identification Number (VIN). This means you get a part that is truly plug-and-play, eliminating the need for an expensive trip to the dealership for programming. It’s the perfect fix for both seasoned mechanics and determined DIYers looking to get their car running smoothly again.
Case Study: A Tricky Diagnosis
I remember a 2000 Pontiac Bonneville with the 3.8L V6 that came into the shop with a complaint of intermittent stalling and a random misfire that jumped cylinders. The owner had already replaced plugs, wires, and the ignition control module. Scans showed a P0601 (Internal Control Module Memory Check Sum Error) code that would pop up sporadically. On these GM platforms, a P0601 is a near-certain death sentence for the PCM. The internal processor fails, causing unpredictable commands to the engine. We installed a VIN-programmed PCM just like this one, and the car ran perfectly. It’s a classic failure I’ve seen dozens of times on these vehicles, and a quality programmed module is the only correct fix.
Is Your Vehicle Showing These Telltale Signs?
A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need. Look out for:
- âś” Check Engine Light is on with codes like P0601, P0602, P0604, or P0606.
- âś” The engine cranks but refuses to start.
- âś” Unexplained stalling or rough idling, especially when warm.
- âś” Noticeable decrease in fuel efficiency.
- âś” Harsh or erratic automatic transmission shifting.
- âś” Communication errors with your scan tool.
A Straightforward Guide to Installation
Replacing your 1999-2000 LeSabre PCM is a manageable job for a DIYer with basic tools. Follow these steps for a successful installation:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes to allow capacitors to discharge.
- Locate the PCM: On most compatible models, including the LeSabre, the PCM is located in the engine compartment, typically inside the air filter housing. You may need to remove the airbox lid to access it.
- Disconnect the Harnesses: Carefully unclip and disconnect the electrical wiring harnesses from the old PCM. These connectors have locking tabs; do not force them.
- Remove the Old Module: Unbolt the PCM from its mounting bracket or housing.
- Install the New Module: Seat your new, pre-programmed PCM into the mounting location and secure it. Reconnect the wiring harnesses, ensuring they click firmly into place.
- Reconnect the Battery: Reattach the negative battery terminal. The vehicle may need to complete a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your owner’s manual for specific steps.
Verified Compatibility for Your Vehicle
This module is a direct fit for a wide range of GM vehicles. Please verify your vehicle and options below. This part is identified by part number 9361735.
GRAND PRIX 99-00 (LH engine compartment, check engine/options)
BONNEVILLE 99-00 (LH engine compartment, check engine/options)
CUTLASS 99 (LH center dash, ID 9361735)
INTRIGUE 99 (LH engine compartment)
RIVIERA 99 (RH dash)
SILHOUETTE 99 (LH engine compartment)
VENTURE 99 (LH engine compartment)
IMPALA 00 (LH engine compartment, 3.4L or 3.8L)
MONTANA 99 (LH engine compartment)
CENTURY 99 (LH engine compartment)
PARK AVENUE 99 (LH front engine compartment)
TRANS SPORT 99 (Canada, LH front engine compartment)
LUMINA CAR 99 (LH engine compartment)
REGAL 99 (LH engine compartment)
MALIBU 99 (LH dash, 3.1L)
LESABRE 99-00 (LH front engine compartment)
MONTE CARLO 99-00 (LH engine compartment)
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. You just need to provide your vehicle’s 17-digit VIN during or after checkout. This part will arrive ready to install.
Is this a new part?
No, this is a high-quality, tested, and fully functional used OEM part sourced from a salvaged vehicle. This ensures OEM reliability at a fraction of the cost of a new module.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is your car’s unique 17-digit serial number. It contains critical information about your vehicle’s specific options, engine, and transmission. We use it to load the exact correct software for your car.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM also controls transmission functions like shift points and line pressure. If the PCM is faulty, it can cause poor shifting, and replacing it with a correctly programmed module often resolves these issues.
What if I don’t provide my VIN?
We cannot ship the module until we receive your VIN, as the programming is essential for the part to function in your vehicle. We will contact you after your purchase to ensure we get the information needed to help you.