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tim's auto repair
tim's auto repair, Mechanic
Category: Jeep
Satisfied Customers: 15969
Experience:  own shop 25yrs
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Grand Cherokee larado 2006 4.7 liter engine cylinder 1

Customer Question

Grand Cherokee larado 2006 4.7 liter engine cylinder 1 misfires
Submitted: 1 year ago.
Category: Jeep
Expert:  tim's auto repair replied 1 year ago.

Hi, My name is ***** ***** for the delay.

I will do my best to assist you

is the 301 code the only code you get?

is the throttle position sensor the only thing you have tried?

Customer: replied 1 year ago.
Also changed the coil,only misfires going uphill 70 mph
Expert:  tim's auto repair replied 1 year ago.

ok,,sense you have replaced the #1 coil and you still get a miss,,the first thing to do is tune up the engine,,replace the plugs and the spark plug boots..if it still misses after the tune up,,you will need to check the fuel pressure,,these must have no less than 55psi at all times,the fuel pump may be weak

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