2010 Jeep P0174: What It Means & Is It Safe to Drive?
P0174 on the 2010 Jeep: System Too Lean (Bank 2). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
PowertrainMedium urgency
What this code means
Same as P0171 but for bank 2. The engine is running too lean on the side that contains cylinder 2.
Common causes on the 2010 Jeep
- Vacuum leaks affecting bank 2
- Faulty MAF or O2 sensor
- Fuel delivery issues
Symptoms
- Check Engine Light
- Rough idle, hesitation
- May appear with P0171 on V6/V8 engines
Typical fixes
- Smoke test for vacuum leaks
- Inspect intake gaskets and hoses
- Check fuel pressure and filter
Repair cost range
For a 2010 Jeep, repairs for P0174 typically fall between $100 and $600, depending on the root cause and labor rates in your area.
Known issues on Jeep
Jeep V8 P0174 with P0171 typically indicates a cross-bank vacuum leak at the intake manifold-to-head gaskets or a faulty MAP/MAF sensor. Address before P0420/P0430 can develop from lean-induced catalyst damage.
Most commonly affected models
Grand Cherokee 4.7L/5.7L 2005–2010Commander 2006–2010