As impressive as GM's new engine platform appeared, the LB7 had terrible problems with
fuel injectors failing.
Other than 2 engine warning lights that came on within the last 12 months where it needed to be reset,
a fuel injector failed a month ago.
My fuel injector failed at 20k miles and left me on the side of the road.
Not exact matches
That goo is the result of
failing seals in the
fuel injectors.
A lack of
fuel flow could be down to a
failing fuel pump, clogged
fuel filter or clogged
fuel injectors.
A misfire occurs when a cylinder
fails to ignite the air /
fuel mixture at the right time and could happen due to a wide range of reasons, including lack of spark (a bad coil), lack of
fuel delivery (clogged
fuel injectors) and improper ignition timing (out - of - spec cam timing).
Fuel related misfires can be caused by many different things such as low fuel pressure, faulty or dirty fuel injectors, a faulty O2 sensor, a dirty or failing mass air - flow sensor, a faulty or dirty idle air control valve or a vacuum or intake l
Fuel related misfires can be caused by many different things such as low
fuel pressure, faulty or dirty fuel injectors, a faulty O2 sensor, a dirty or failing mass air - flow sensor, a faulty or dirty idle air control valve or a vacuum or intake l
fuel pressure, faulty or dirty
fuel injectors, a faulty O2 sensor, a dirty or failing mass air - flow sensor, a faulty or dirty idle air control valve or a vacuum or intake l
fuel injectors, a faulty O2 sensor, a dirty or
failing mass air - flow sensor, a faulty or dirty idle air control valve or a vacuum or intake leak.
Rough idle and excessive shaking of the engine could be due to a bad tank of gasoline, dirty
fuel injectors, incorrect idle speed, exhaust restrictions, vacuum leaks, incorrectly installed or damaged spark plugs, a defective or clogged
fuel pump or
fuel filter,
failing electrical components such as the ignition control module, plug wires, coils, and spark plugs, a defective airflow sensor, dirty oxygen sensors and other causes.
The most common would be a bad
fuel filter, transmission fault, torque converter issue, shift solenoid problem, low
fuel pressure, or a
failed fuel injector.
The lack of response to the accelerator pedal has quite a few potential causes that would have to be sorted out in a diagnostic including, just as a few examples, plugged
fuel injectors, faulty oxygen sensors,
fuel pump and / or filter, vacuum leaks including that caused by a faulty EGR system, ignition system malfunctions, bad valve timing if the timing belt or chain is worn or skipped, blocked exhaust (e.g., catalytic converter
fails or becomes clogged), a faulty airflow sensor or throttle position sensor, and so forth.
I lost the transmission at 80k miles, had all the
fuel injectors replaced when two
failed.
Rough idle can be caused by dirty
fuel injectors, incorrect idle speed, exhaust restrictions, vacuum leaks, incorrectly installed or damaged spark plugs, a defective or clogged
fuel pump or
fuel filter,
failing electrical components such as the ignition control module,...
Though
fuel consumption of some models is impressively low, some owners of older diesel BMWs have faced big repair bills when parts such as turbochargers,
injectors or exhaust filters have
failed out of warranty.