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George H.
George H., Hyundai Technician
Category: Hyundai
Satisfied Customers: 2059
Experience:  Hyundai Gold certified, ASE Master tech 15+ years
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I replaced spark plugs and wire in 2003 2.3L Santa Fe and

Customer Question

I replaced spark plugs and wire in 2003 2.3L Santa Fe and replaced both valve cover gaskets but after reassembly the engine runs for a second or two and dies. I have checked and rechecked the wiring diagram many times and am sure the spark plug wires are connected to the correct coils.
JA: Does the vehicle have a carburetor?
Customer: Fuel inj
JA: Are you fixing your Santa Fe yourself? What have you tried so far?
Customer: Doing it myself. Have rechecked all hoses, connectors and have found no air leaks at the plenum
JA: Anything else you want the mechanic to know before I connect you?
Customer: Nothing else to report, i thi
Submitted: 5 months ago.
Category: Hyundai
Expert:  Peter Bagley replied 5 months ago.

Hello and welcome to just answer. I value your input to my questions so Ian help you better. read your question and wondering if you left something disconnected . Do you hear anything like air sucking?

Customer: replied 5 months ago.
No sounds of air sucking. All vacuum hoses are connected and all sensor connectors are tight. Spark plug wires are firmly seated at both ends
Customer: replied 5 months ago.
Is that your complete answer?
Expert:  Peter Bagley replied 5 months ago.

No just trying to cover all basis as I am not there to actually see or hear it I depend on your input so I can properly narrow it down, If your not happy with my process I can opt out for anpther to help you. What's your wish?

Customer: replied 5 months ago.
No sounds of air sucking. All vacuum hoses are connected and all sensor connectors are tight. Spark plug wires are firmly seated at both ends.
Expert:  Peter Bagley replied 5 months ago.

Have you checked for any recent codes ? are you in a shop doing this or at home? What we need to do is determine if it's fuel or electrical.

Customer: replied 5 months ago.
Home. I got a code but don't recall the number. It was MAF sensor-Low Voltage. I swapped the MAF sensor with a known good one off of my other 2.7L Sonata. There was no change in the symptoms
Expert:  Peter Bagley replied 5 months ago.

Ok like I said we have to determine if its fuel or electrical Can you put a fuel pressure gauge on it to see if the pressure drops? Can you get a can of quick start and see if you can make it run any longer with a couple shots into the intake. Also check to see if you by accident didn't disturb any cam sensors or their connections.

Customer: replied 5 months ago.
I'll try those things and get back with you tomorrow afternoon. I'll have to borrow the scan tool from work and pick up a loaner fuel pressure gauge set from the parts store. I'll check the cam sensors and try some starting fluid.
Expert:  Peter Bagley replied 5 months ago.

This would be good that would narrow things down.