Skip the auto shop - Our mechanics make house calls

Q: Engine does not run in the morning while the ignition seems to be working. When it gets warm outside, car starts.

asked by on

Changed feul pump and relay and the problem still persists. During the warm day, it starts immediately but when cold outside it does not start although ignition seems to be working. And sounds normal.

My car has 99000 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, it is apparent that something is being affected by ambient temperature. Assuming the check engine light is not coming on when it does start, this leads me to believe the ECM (engine control module) is not recognizing the fault. What needs to be confirmed is, whether the engine is losing spark, fuel, or both. Replacing components without a diagnoses could be, expensive and time consuming, as any number of components could be affected by ambient temperature. You should have your vehicle inspected by a certified technician to diagnose what issue is causing your vehicle to start intermittently.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Engine does not run in the morning while the ignition seems to be working. When it gets warm outside, car starts.

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: I have an Acura RL 2005 with 140k miles, never the transmission fluid has been change. Should I change and do the three times flus

Your vehicle has a Maintenance Minder system, that provides automated reminders of when particular services should be performed. If Maintenance Minder code "3" displays on your instrument panel, you should replace your transmission and transfer case fluid. However, if you...

Q: Air conditioning is noisy and slow to blow cold

Hello,From the description provided, there seems to be two different scenarios behind the problems being experienced by your Acura’s air conditioner. Though the information is limited I can try and guide you in the right direction to why that is....

Q: 2001 honda civic ex and was driving down the highway and the car went into limp mode.

One of these codes is for a faulted signal from the intake air temperature sensor. Many newer vehicle have this sensor integrated into the mass air flow sensor and this code trips when the sensor offers a vehicle to the...

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...