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?
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: I am pretty sure my front wheel bearings are going out on my 2010 escape. What is the estimate cost to replace both?

A wheel bearing will not make a crunch sound on bumps but the shocks or struts and sway bar bushings will. I have also seen lower control arms and ball joints make the noise. Try to bounce the front end...

Q: My 2002 Ford Expedition is running too lean with misfires.

Hello. It sounds like you may have a few issues going on here. I usually start by checking the codes in the computer myself. This will give me a good idea of what my be going on and what cylinders...

Q: Cylinder 4 misfire - 2004 Ford F-250

Hi there - yes, these plugs, and their cylinder heads, have proved to be a bit tricky. First tip is to replace the plugs with the engine warm. Second tip is to use one of the "deep sockets" specially made...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...