Skip the auto shop - Our mechanics make house calls

Q: pick up low & starting problem in morning time.

asked by on

I have audi Q7 3.0L v6, this is my dream car, last week saturday i came back at home after long drive{385KM} still saturday night my car was ok but next morning my car had a long self and too much white smoke from silencer but no i did not see any warning light on instrument panel and i drove car after 5 minute idling. when i drove my car i feel car did shift gear properly for checking i pressed full accelerator then i feel engine knocking sound and i stopped car after switch off engine i start car but still engine got long self and engine misfiring suddenly glow plug light on in cluster. Then i came back at home. i have car scanner, so i was check with tester i found code p8700 fuel pressure to low. please suggest me for next step.

My car has 68900 miles.
My car has an automatic transmission.

Hello. If your vehicle is showing trouble code P0087, for low system fuel pressure then that is likely part of what may be causing your performance issues. Low fuel pressure can cause an engine to lose power, misfire, and in some cases may even prevent the engine from running at all. A few things that can set off this code are a faulty high pressure fuel pump, a faulty in tank fuel pump, or a bad fuel pressure sensor. If either of the fuel pumps malfunction it may affect their ability to provide fuel pressure, which will set off the warning light and cause performance issues. A faulty fuel pressure sensor may send a bad signal to the computer, which can do cause the same symptoms to occur. If the glow plug light is still on then that may be a sign that there is an issue with one or more of the glow plugs. As it appears that your vehicle may possibly be experiencing more than one issue, I would recommend having a professional technician, such as one from YourMechanic, come to your location to determine the cause of the check engine light and symptoms.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The yellow light for audi air suspension is flashing. What is the problem? On servis house said, possible that sensors freeze

If you have a warning light on your dash related to your air suspension system, this can be due to a few different things. Sometimes the air bags will develop leaks over time. When one of the air bags deveops...

Q: Car is in reverse/drive but won’t move back or up..transmission fluid were replaced 2 weeks ago....I even jump started it TWICE...

Hi there. This is a common problem with the Ford Focus and has been for several years. In most cases, the problem you are experiencing is caused by an internal transmission seal that breaks sooner than it should, leaks transmission...

Q: When I am applying brakes at the speed of 60 to 70mph my steering wheel starts to shake?

If you are getting a pulsation in the brakes when applied at high speeds then you most likely have warped front brake rotors or they have hot spots on them that cause the pulsation. Inspect rotors and look for discolored...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...