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HDGENE
HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 4924
Experience:  25 years Auto experience, Ford ,GM, Chrysler, Asian & European
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I own a 2002 Ford Explorer as 3rd car winter it has a 4.6

Customer Question

I own a 2002 Ford Explorer as 3rd car for the winter it has a 4.6 liter always been serviced has152000 thousand my service engine light came on and some times flashes miss idles took to mechanic codes read camshaft and crankshaft sensors bad and had #5 coil replaced service engine soon light came back on what does anyone think also rough idles and makes low banging noises from Mortor please help
Submitted: 1 year ago.
Category: Ford
Expert:  HDGENE replied 1 year ago.

Hello, if it is running rough at idle and making engine nois, there is a good possibility it has base engine concern/damage. A compression test will help tell if this is the case, low engine compression can cause an engine running rough at idle and misfire. There should not be more than 10% difference between any cylinder. Also a bad fuel injector can cause a rough idle. Need to rerun an engine diagnostic to see if any of the original codes are gone or still there and if any others are now stored to start.

Customer: replied 1 year ago.
If the codes read the same what do I do
Expert:  HDGENE replied 1 year ago.

Like I mentioned, test engine compression,test injector flow/pulse.test for ignition coil pulse on the affected cylinder misfiring.if you can list the actual diagnostic trouble code numbers I can tell you more in depth diagnostics for the cam and crank sensors

Expert:  HDGENE replied 1 year ago.

Do you need more help with this concern?

Expert:  HDGENE replied 1 year ago.

Hello, did you resolve this concern?