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2003 ford ranger: miss at low rpms...gas filter, spark plug wires…

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I have a 2003 ford...
I have a 2003 ford ranger with 85K miles. I have a miss at low rpms. I replaced the gas filter, spark plug wires and spark plugs. It is a 5 speed manual 2.3L motor.
Submitted: 8 years ago.Category: Ford
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Answered in 5 minutes by:
6/10/2010
Ford Mechanic: Fix It Man, Master Technician replied 8 years ago
Fix It Man
Fix It Man, Master Technician
Category: Ford
Satisfied Customers: 17,611
Experience: ASE Master Certified, AA Degree Auto/Diesel
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Hello JACUSTOMER, is the check engine light on?
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Customer reply replied 8 years ago
No
Ford Mechanic: Fix It Man, Master Technician replied 8 years ago
Okay, and does the vehicle run fine at higher speeds?
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Customer reply replied 8 years ago
yes above 1800rpms.
Ford Mechanic: Fix It Man, Master Technician replied 8 years ago
Okay. Most of the time this is due to an intake manifold vacuum leak. If there is a leak then the engine will miss ar low rpm's. You can spray some intake cleaner around the intake while the vehicle is idling to see if the rpms change. If it does then the intake is leaking.
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