Is your trusty GMC Safari, Chevy Express, or GM truck suddenly running rough, refusing to start, or throwing a persistent check engine light? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and immobilizing issues. Don’t let a complex electronic problem keep your workhorse off the road. This genuine GM engine computer is the straightforward, reliable solution to restore your vehicle’s performance and get you back to work, worry-free.
Common Symptoms & Your Solution
A faulty PCM can cause a wide range of problems that can be difficult to diagnose. If your vehicle is experiencing any of the following, this pre-programmed module is your definitive fix:
- Complete No-Start Condition: The engine cranks but will not fire up.
- Stalling or Rough Idle: The engine runs poorly, stalls unexpectedly, or idles erratically.
- Poor Fuel Economy: A sudden and unexplained drop in your vehicle’s MPG.
- Check Engine Light (CEL): Persistent CEL with communication-related Diagnostic Trouble Codes (DTCs) like U-codes, or codes related to sensor circuits that test fine.
- Failed Emissions Test: Inability to pass state inspection due to engine performance or readiness monitor issues.
- Harsh or Incorrect Shifting: The transmission may shift erratically or not at all, as the PCM also controls transmission functions.
This unit, a Programmed 1998 GMC Safari PCM 09366810, is flashed specifically for your vehicle, taking the guesswork and high cost out of the repair.
Features & Benefits
- ✔ VIN-Specific Programming Included: We flash the module with the latest GM software updates using your vehicle’s VIN. This ensures perfect compatibility and optimal performance right out of the box.
- ✔ Skip the Dealership: Because the unit arrives pre-programmed, you can avoid the expensive programming fees and long wait times typically associated with a dealership visit.
- ✔ Restore Peak Performance: A correctly functioning PCM ensures precise fuel delivery, ignition timing, and transmission shifting, restoring the power and efficiency you depend on.
- ✔ Cost-Effective Solution: Get a reliable, tested, genuine GM part without the high price tag of a brand-new computer. It’s the smart choice for keeping your trusted vehicle in top condition.
- ✔ Broad Compatibility: This module is a direct replacement for multiple part numbers, including the common 09355699, fitting a wide range of popular late-90s GM trucks, vans, and SUVs.
- ✔ This unit is backed by our one-year replacement warranty.
An Expert’s Insight on GM’s “Black Box” Computers
As a technician, I’ve seen countless of these late-90s GM “black box” PCMs. They are generally robust, but after 20+ years, internal components like capacitors and injector driver circuits can fail. This leads to intermittent issues that are a nightmare to track down. Many people try a junkyard part, only to find it’s also bad or needs programming they can’t perform. Getting a tested, proven unit like this, pre-flashed to your VIN, is the single most effective way to solve the problem correctly the first time. It turns a potentially complex electronic repair into a simple bolt-in job.
Don’t let a bad computer sideline your vehicle. This Programmed 1998 GMC Safari PCM 09366810 is the definitive, hassle-free solution to get your truck or van running like it should. Simply provide your VIN during checkout, and we’ll handle the rest.
Frequently Asked Questions
Do I need to do any additional programming after installation?
No, the core engine and transmission programming is completed by us before shipping. However, on most of these GM vehicles, you will need to perform a simple security relearn procedure (often called a CASE relearn or Passlock relearn). This can typically be done without special tools and involves a sequence of key turns. Instructions are widely available online for your specific model.
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or reply to your order confirmation email. We cannot ship the part until we receive your VIN, as the programming is specific to your vehicle.
Is this a new part?
No, this is a used, genuine GM computer that has been carefully removed from a salvaged vehicle. Each unit is inspected and then programmed with the latest software to ensure it is ready for service in your vehicle.
Will this PCM fix my specific problem?
This module will correct issues directly caused by a failing PCM. While it resolves the most common symptoms like no-start conditions, communication errors, and erratic behavior, it’s essential to ensure your vehicle’s wiring, sensors, and other components are in good working order. A proper diagnosis is always recommended.
How do I know if this part fits my vehicle?
Please check the extensive fitment list and part numbers provided in the description. The most critical step is to match your original part number to one of the numbers listed (e.g., 09355699, 16266645, 09366810). Programming to your VIN ensures final electronic compatibility.