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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1998 Ford Explorer Question: After replacing heads, car won't idle
Answer #1asksteevies March 09, 2014, 11:47Master
valves to tights???
Replytmhbratt, March 09, 2014, 11:58Rookie
We tightened the heads down to the torque specs (54 ft lbs) and didn't touch the valves at all
Answer #2G. T. Service Center (4245 Answers) , Stephenville, TX - (254) 638-3236ProfessorG March 09, 2014, 11:51Master
Vacuum hoses, grounds all hooked up.
Replytmhbratt, March 09, 2014, 11:59Rookie
Yes. Grounds are hooked up and all vacuums are in place.
ReplyProfessorG, March 09, 2014, 12:01Master
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.
Replyasksteevies, March 09, 2014, 12:05Master
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..
Replytmhbratt, March 09, 2014, 12:16Rookie
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?
ReplyProfessorG, March 09, 2014, 12:23Master
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.
pushrod March 09, 2014, 12:46Master
Just for the hell of it, what engine we working on? Is it a pushrod V/8-V/6 or sohc V/6?
Replytmhbratt, March 09, 2014, 12:49Rookie
It's a 4.0 pushrod v6
And now we're seeing it blow two of the vacuum hoses off as its running
Replypushrod, March 09, 2014, 12:55Master
Plug wires back in proper order? Check them again!! New spark plugs after heads installed? Check engine light on? Need code numbers!
Replytmhbratt, March 11, 2014, 21:13Rookie
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! :-)
Replypushrod, March 11, 2014, 21:53Master
Replyasksteevies, March 13, 2014, 00:17Master
Damn, ur good..