What are some common causes of disputes between vehicle owners and repair shops?

Jan 29, 2014 ... No more fouling of number 2 and the engine runs better then it ever did. Still puzzled about why only one spark plug fouled. Check out the carb. Carbon fouling is an indication of a rich air-fuel mixture, weak ignition, or improper heat range (too cold). Carbon deposits are conductive and can create a ... Aug 20, 2006 ... What would cause the front cylinder spark plugs to foul heavily with carbon on my 2002 VTX 1800C? The rear cylinder plugs were ok. Jun 5, 2024 ... Since all four plugs are fouled, I would lean towards oil. You may have lost a seal on the turbo, or the new PCV diaphragm may be faulty. Nov 28, 2022 ... I just changed my own spark plugs, and it seems they are Carbon fouled. ... I don't think the condition on these plugs would cause any harm to the ... Sep 22, 2018 ... If all of the spark plugs show heavy dry carbon fouling, the rich fuel mixture may be caused by too much fuel pressure (check for a defective ... Apr 13, 2023 ... The unburnt carbon will be deposited on the spark plug, causing carbon build-up. ... Every car has an oxygen sensor, which monitors the air and ... Jul 14, 2013 ... I expect that it is relatively new as the motor produces 105psi compression cold. Plug is a NKG CPR8E gapped to 0.9mm. The air filter is clean. Sep 1, 2014 ... You're not doing your engine any favors like that. Smell, smell is unburned fuel mix coming out the exhaust. this is caused by mis-fire. put a ... May 13, 2021 ... Carbon fouling on a spark plug is caused by a problem with the fuel that you use. Often, we describe it as a fuel mixture that's too rich, which ...