Q: Surging idle and almost stalling on start up .

asked by on

Good day . I am having a problem diagnosing my engine issue . I have a 2000 Ford Expedition with a 5.4 ltr . My problem is when I start the truck in the morning everything seems fine for about two mins . After that the engine seems to either be starving for air or getting to much air . I have replaced my idle air control valve , my cylinder head temp sensor , my intake air sensor , gone through all vacuum hoses and Pcv lines . I have cleaned my maf sensor and changed my fuel filter . There doesn't seem to be any vacuum leaks along the intake manifold as I have listened with a stethoscope and have heard nothing . I have sprayed throttle body cleaner along all gasket seams and has not changed idle of engine . Once the temp of the vehicle is at operating level there doesn't seem to be a problem . I have also changed spark plugs to motorcraft Ford plugs . Everything I read online doesn't seem to help . Thank you in advance

My car has 176000 miles.
My car has an automatic transmission.

Hello there, many different faults can cause your 2000 Ford Expedition to have a surging idle and stalling issues. You have done great so far in your diagnosis and repairs thus far. There are a few other potential causes such as a throttle cable, fuel pump, throttle body, wiring harness fault, exhaust leak, oxygen sensors or a coil. A qualified Technician such as one from YourMechanic will be able to diagnose your rough idle and stalling and make any repairs required.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Surging idle and almost stalling on start up .

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: Need to know if I need to have brakes replaced at the same time as the master cylinder?

Hi, thanks for writing in. I'd be happy to provide my insight. You do not automatically need to replace the brakes with the master cylinder. When facing brake issues, always do a full inspection. Brakes are such a critical safety...

Q: My 98 ford expo won't start.i was trying to connect my trailer lights up by splicing the wire and now thief light won't come on

Hi Lou. Thanks for the question tonight. If the wire was attempted to be spliced while the battery was connected, it may have shorted the fuel pump or other electrical components on your Ford Expedition. Anytime electrical work is completed,...

Q: Air suspension compressor is coming on but it is quieter than normal and is not lifting navigator

Hello there, you have a few different potential issues going on with your 1998 Lincoln Navigator air compressor. If the air compressor sounds weak, there is likely an air leak, or the compressor is failing. Air leaks can be found...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...