Rick's Free Auto Repair Advice

Posts Tagged: P0172

GM Service bulletin 18-NA-246 for P0172 trouble code

Service bulletin 18-NA-246 fix for P0172 trouble code on 2.0L LTG series engine GM has issued service bulletin 18-NA-246 to address a P0172 trouble code on all 2016-2018 Buick, Cadillac, Chevrolet and GMC vehicles equipped with the 2.0L LTG  engine Cause of P0172 GM states that driving the vehicle in short intervals may not allow crankcase temperatures to rise to the point of evaporating water and gas from a cold start-up. The excessive fuel collects in the crankcase. To correct the problem, change the oil and filter. Preventing P0172 On … Read More

oil in air intake duct

Oil in air inlet duct GM has issued a service bulletin to address a problem with oil in air intake duct, along with a check engine light, poor acceleration, and throttle body freezing. The bulletin applies to the following vehicles equipped with the 3.6L engine: 2008-11 Buick Enclave 2007-11 Chevrolet Malibu 2009-11 Chevrolet Traverse 2007-11 GMC Acadia 2007-10 Pontiac G6 2007-09 Saturn AURA 2007-10 Saturn OUTLOOK GM states that the problem occurs after a cold start up or when driving in cold temperatures. If you scan the PCM, you may … Read More

P0172 System too Rich (Bank 1)

Fix codes P0172, DTC P0172, Ford Focus 2.3 engine, P0172 – System too Rich (Bank 1) Ford has issued a technical service bulletin (TSB) 05-10-22 to address DTC P0172, P0172 – System too Rich (Bank 1). The bulletin applies to 2003-04 Ford Focus vehicles with the 2.3L PZEV engine and 4F27E transmission. The check engine light will be lit, but you may not notice and drivability symptoms. Do NOT start replacing parts. Ford has issued new software to correct the problem. Take the vehicle to a Ford dealer or an … Read More


Fix code P0172 System too Rich (Bank 1) If you have a P0172 System too Rich (Bank 1)trouble code, read this to understand what it means This trouble code indicates that the oxygen sensor on bank 1 (the bank that has cylinder #1) is reporting a rich mixture. Do NOT automatically assume that you have a bad oxygen sensor. This code can also be caused by a misfire or a bad fuel pressure regulator.   © 2012 Rick Muscoplat

P0340, P0344, P0172, P0175 – Ford

Fix trouble codes P0340, P0344, P0172, P0175 on Ford If you encounter any of these codes P0340, P0344, P0172, P0175 – Ford, this may be the fix for you. Ford has issued a TSB (#06-13-9) for 2005-06 Expeditions and Navigator vehicles. The fix involves updating the PCM software. The symptoms are as follows: Hard starting requiring multiple restart attempts after the vehicle has been driven and shut down (hot soak). The “check engine” light is on and any or all of the above codes are stored in the PCM. You … Read More

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