Is your trusted ’98 or ’99 GM truck or SUV giving you headaches?
If your Chevrolet Suburban, Tahoe, C/K Pickup, or GMC Yukon is experiencing frustrating issues like a persistent check engine light, stalling, erratic shifting, or a complete no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. The PCM is the brain of your vehicle, and when it starts to fail, it can cause a cascade of problems that leave you stranded and searching for a reliable solution. Don’t let a faulty computer sideline your workhorse. We have the straightforward, effective fix you need.
Common Symptoms of a Failing PCM & Your Direct-Fit Solution
A bad engine computer can manifest in many ways. You might be dealing with specific Diagnostic Trouble Codes (DTCs) related to processor failure or communication errors, or you may just notice the vehicle isn’t running like it used to. This professionally programmed Programmed 1999 Suburban 1500 PCM is the definitive solution for restoring your vehicle’s performance and reliability. It directly addresses issues such as:
- Engine stalling or misfiring
- Failure to start
- Poor fuel economy
- Harsh or incorrect automatic transmission shifting
- Illuminated Check Engine Light with no other apparent cause
- Loss of communication with diagnostic scan tools
Features & Benefits
- โ VIN-Programmed for Your Truck: This isn’t a generic, one-size-fits-all part. We flash it with the latest GM software updates using your specific Vehicle Identification Number. This ensures perfect communication with your vehicle’s systems right out of the box.
- โ Plug & Play Installation: Because we program it for you, this unit arrives ready to install. This eliminates the need for expensive trips to the dealership for programming, saving you time and money.
- โ Restores Peak Performance: A correctly functioning PCM is critical for engine health. This replacement unit restores proper fuel delivery, spark timing, and transmission control, bringing back the smooth, dependable performance you expect from your GM truck.
- โ Cost-Effective & Reliable Repair: Get a high-quality, fully tested replacement computer without the staggering cost of a new-from-dealer part. This is the smart, economical way to keep your trusted vehicle on the road for years to come.
- โ Broad GM Compatibility: This unit, service number 16250279, also replaces part numbers 09355699, 16266645, 9355699, 16258815, 09366810, 9366810 and fits a wide range of GM trucks, vans, and SUVs from the era.
- โ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Take on Keeping Your Classic GM Running Strong
As a technician with over two decades of experience, I have a deep respect for these late-90s GM trucks. They are some of the most durable and straightforward vehicles ever built. However, after 20+ years of heat cycles and vibration, the original electronics, especially the PCM, are common failure points. The internal capacitors and solder joints can degrade, leading to the exact intermittent issues you’re likely facing. Replacing it with a solid, tested unit like this Programmed 1999 Suburban 1500 PCM is the most direct path to getting that legendary GM reliability back. The pre-programming service is the keyโit turns a potentially complex job into a simple bolt-in repair for any DIYer or independent shop.
Frequently Asked Questions
Do I need to have this computer programmed by a dealer?
No. The main benefit of our service is that we program the computer to your vehicle’s specific VIN before we ship it to you. It will arrive ready for a plug-and-play installation.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This allows us to load the correct, updated software for your truck’s specific configuration.
Will I need to perform a security relearn procedure?
In most cases, yes. GM’s Passlock/VATS security system will require a relearn procedure after the PCM is replaced. This is a simple process that typically takes 10-30 minutes and involves cycling the ignition key. We can provide you with easy-to-follow instructions.
How can I be certain this is the right part for my vehicle?
The best way is to match the service number on your current PCM to one of the numbers listed (e.g., 16250279 or 09355699). If you are unsure, send us your VIN, and we will be happy to verify compatibility for you before you order a Programmed 1999 Suburban 1500 PCM.
Is this a new part?
No, this is a thoroughly tested, used OEM computer sourced from a salvaged vehicle. This allows us to provide a reliable, factory-correct part at an accessible price point.