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Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23001
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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2003 ford explorer sport trac,4.0 sohc. cranks like crazy

Customer Question

2003 ford explorer sport trac,4.0 sohc. cranks like crazy but won't fire up. fuel pressure 60-65. drove it 200 miles yesterday,ran fine.won't start today????? what the heck???
JA: How many miles are on the vehicle? And when was it last serviced?
Customer: 99900 and I service it regularly.
JA: Are you fixing your Explorer Sport yourself? What have you tried so far?
Customer: yes. Ive got 50 years twisting wrenches. No codes,by the way. Seems to be electrical. did this last week and you people suggested changing the air sensor, which I did,because it was running then but surging at 3000 rpm.
JA: What is the make/model of your car?
Customer: \2003 ford explorer sport trac, 4.0 sohc.
JA: Anything else you want the mechanic to know before I connect you?
Customer: fuel pressure is at 65, and constant when running, only drops to 63 when turned off and steady . I believe it's an electrical problem????
Submitted: 4 months ago.
Category: Ford
Expert:  AMEDEE replied 4 months ago.

Hello and welcome!

My name isCustomerand I can assist you with your question.

Expert:  AMEDEE replied 4 months ago.

Does the engine have spark while cranking?

Does the check engine light illuminate with the key on for a bulb check?

Does the check engine light go off while cranking?

Customer: replied 4 months ago.
Spark, not sure!!!!?? ran fine yesterday.Cel comes on when cranking. but does not stayon. No codes show on my tester, cel goes off while cranking.
Customer: replied 4 months ago.
Correction, cel on before cranking , goes off while cranking.
Customer: replied 4 months ago.
don,t have a spark tester.
Expert:  AMEDEE replied 4 months ago.

Do you have a screw driver to use to check for spark?

Customer: replied 4 months ago.
MY best guess I no spark,but I don't .
have anybody to crank while I check
Expert:  AMEDEE replied 4 months ago.

You do understand I cannot point you in the right direction unless you provide me with accurate information.