Silverados, Tahoes and Suburbans are everywhere in Dallas, and many run past 200,000 miles. The Chevy problems we see most at CarNation Elite are lifter failures on V8s with Active Fuel Management, oil burning on some Equinox four-cylinders, torque converter shudder on 8-speed automatics, A/C condenser leaks, and EVAP system faults that turn on the check engine light.
Common Chevy problems at a glance
| Problem | Commonly reported on | Warning signs |
|---|---|---|
| AFM/DFM lifter failure | 5.3L and 6.2L V8 Silverado, Tahoe, Suburban, Sierra, Yukon | Ticking, misfire codes, rough running, check engine light |
| Excessive oil consumption | 2.4L 4-cylinder Equinox (and GMC Terrain), roughly 2010–2017 | Low oil between changes, oil light, fouled plugs |
| Torque converter shudder | 8-speed automatic, roughly 2015–2019 trucks and SUVs | Shudder like driving over rumble strips at 25–80 mph |
| A/C condenser leaks | Many Silverado and Sierra trucks | A/C blowing warm, refrigerant leak at the front of the truck |
| EVAP vent valve faults | Many GM trucks and SUVs | Check engine light with EVAP codes, trouble refueling |
| Water pump and cooling leaks | Many models at higher mileage | Coolant loss, sweet smell, rising temperature |
1. AFM and DFM lifter failure
To save fuel, many GM V8s shut off cylinders at cruise using special lifters. Those lifters can stick or collapse, causing a tick, misfires and, if ignored, camshaft damage. Clean oil changed on time is the best protection. If your truck develops a tick or misfire codes, have it diagnosed before damage spreads.
2. Equinox oil consumption
The 2.4L four-cylinder in many Equinox and Terrain models from about 2010 to 2017 was widely reported to burn oil because of piston ring design. Running low on oil can damage the timing chain and engine, so check the dipstick between oil changes if you own one.
3. 8-speed torque converter shudder
Many 2015 to 2019 trucks and SUVs with the 8-speed automatic developed a shudder that feels like driving over rumble strips. GM addressed many cases with a transmission fluid flush using an updated fluid. A proper diagnosis comes first, since other problems can feel similar.
4. A/C condenser leaks
Silverado and Sierra A/C condensers sit at the front of the truck, where road debris and age take a toll. In a Dallas summer, a leaking condenser shows up fast as warm air. The fix is finding and replacing the leaking part, then recharging, not just topping off refrigerant.
5. EVAP vent valve
A sticking EVAP vent solenoid is a common cause of check engine lights on GM trucks, and can make the pump click off repeatedly when refueling. It's usually an inexpensive repair, but the light must be fixed before an emissions test.
Keeping a Chevy truck or SUV going
- Use dexos-approved oil and don't stretch changes, especially on AFM V8s.
- Follow the severe-service schedule if you tow or idle a lot in Dallas heat.
- Check the oil level between changes on 2.4L Equinox engines.
- Have the A/C checked every spring.
- Get a pre-purchase inspection on any used Silverado or Tahoe; we check the AFM system specifically.
Will an independent shop void my Chevrolet warranty?
No. Under the Magnuson-Moss Warranty Act, GM can't void your warranty because you used an independent shop for maintenance, as long as the work follows GM's specifications, including dexos-approved oil. We document every visit.
Frequently asked questions
What is the lifter problem on Chevy V8s?
Many 5.3L and 6.2L V8s with Active or Dynamic Fuel Management use cylinder-deactivation lifters that can fail, causing ticking, misfires and potential camshaft damage. Early diagnosis keeps the repair smaller.
Why does my Silverado shudder at highway speed?
On many 2015 to 2019 trucks with the 8-speed automatic, a rumble-strip shudder is torque converter shudder. A fluid flush with GM's updated fluid fixes many cases.
Why does my Chevy Equinox burn oil?
The 2.4L engine in many 2010 to 2017 Equinox models was known for oil consumption from piston ring design. Check the oil level often and have it inspected.
How often should I change oil in a Silverado?
Follow the Oil Life Monitor with dexos-approved oil. If you tow or drive in heavy heat and traffic, changing it sooner helps protect AFM lifters.
Get a straight answer on your car
Describe what you're seeing and we'll tell you how urgent it is. Written quote before any work starts.
Book Appointment Call (214) 597-4922