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1998 Ford Explorer Question: After replacing heads, car won't idle

 

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tmhbratt, Port Charlotte, FL, March 09, 2014, 08:46
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It is very hard to crank and once it starts I have to push the gas pedal to get it to 1100 rpm, but once I let off the gas it dies

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  • Answer #1

    asksteevies March 09, 2014, 08:47
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    valves to tights???

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    tmhbratt, March 09, 2014, 08:58
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    We tightened the heads down to the torque specs (54 ft lbs) and didn't touch the valves at all

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  • Answer #2

    G. T. Service Center (4191 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG March 09, 2014, 08:51
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    Vacuum hoses, grounds all hooked up.

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    tmhbratt, March 09, 2014, 08:59
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    Yes. Grounds are hooked up and all vacuums are in place.

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    ProfessorG, March 09, 2014, 09:01
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    You're missing something, walk away then go back and think of the steps of everything you took off, then how it went back together.

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    asksteevies, March 09, 2014, 09:05
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    thats what im saying..maybe coolant in cyl ,need to be ran awhile..check to make sure oils alrite..i usally change it after u get it running..

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    tmhbratt, March 09, 2014, 09:16
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    We've been working on this vehicle for over a week and just found out that the head bolts have to have a 90° turn past the torque specs. Could not having done that be our problem?

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    ProfessorG, March 09, 2014, 09:23
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    It should be done, but it still should start and run if everything else is correct. Long term it will cause problems if it's not done.

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  • Medium-star Best Answer
    pushrod March 09, 2014, 09:46
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    Just for the hell of it, what engine we working on? Is it a pushrod V/8-V/6 or sohc V/6?

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    tmhbratt, March 09, 2014, 09:49
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    It's a 4.0 pushrod v6
    And now we're seeing it blow two of the vacuum hoses off as its running

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    pushrod, March 09, 2014, 09:55
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    Plug wires back in proper order? Check them again!! New spark plugs after heads installed? Check engine light on? Need code numbers!

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    tmhbratt, March 11, 2014, 18:13
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    You were right, the plug wires were in the wrong order and the coil was cracked. After changing the coil and plugging the plug wires in correctly, the problem is solved! Thank you all very much for your assistance! :-)

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    pushrod, March 11, 2014, 18:53
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    We try!

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    asksteevies, March 12, 2014, 21:17
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    Damn, ur good..

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