Installed heads and intake Need help asap

M

mustang88

Well-Known Member
#1
#1
decided to put a pair or 96 explorer gt40 heads and explorer intake on my car yesterday, now it runs like shit, idles just as bad , has no power, i made sure it was times quite a few times and it is, and the vacum lines i believe are where they should be. i used the stock mustang cam. mustang pushrods because they looked the same. any ideas?
​
 
cobra20sc

cobra20sc

Well-Known Member
#2
#2
Make sure base timing is set correctly, 10deg btdc with spout connector off. Also check fuel pressure with vacuum reference disconnected. Are o2 sensors hooked up? Is this a maf computer?
​
 
M

mustang88

Well-Known Member
#4
#4
yes its mass air,o2s are hooked up, everything was fine before i did the heads and intake, couldnt find any intake leaks, the heads looked ok before i put them on.
​
 
dsblk93gt

dsblk93gt

5.0 Moderator
#9
#9
WAY too many variables to know what it is. Have the heads been touched at all? Is the firing order correct? Do you have the PCV valve in? I have seen people have wires crossed may times or some accidentally use the NON-HO 302 firing order instead. Double check that stuff.
 
M

mustang88

Well-Known Member
#10
#10
everything checks out fine, heads looked good but i guess maybe the might not be?, no matter how much you mess with timing it wont idle right.
​
 
cobra20sc

cobra20sc

Well-Known Member
#11
#11
Double check everything, even the obvious stuff. What was fuel pressure with and without the vacuum reference connected? What exactly is your timing set procedure? Not to long ago, someone here was chasing an idle issue for a couple of months due to setting timing wrong accidentally. What plugs are you running and what are they gapped to, etc etc etc. tough to diagnose over the forums for sure but start with the basics
​
 
92BIGREDBEAST

92BIGREDBEAST

Well-Known Member
#12
#12
cobra20sc said:
Double check everything, even the obvious stuff. What was fuel pressure with and without the vacuum reference connected? What exactly is your timing set procedure? Not to long ago, someone here was chasing an idle issue for a couple of months due to setting timing wrong accidentally. What plugs are you running and what are they gapped to, etc etc etc. tough to diagnose over the forums for sure but start with the basics
​
Click to expand...
Not funny Chris!
 
AdirondackFox08

AdirondackFox08

Member Plus
#14
#14
mustang88 said:
decided to put a pair or 96 explorer gt40 heads and explorer intake on my car yesterday, now it runs like shit, idles just as bad , has no power, i made sure it was times quite a few times and it is, and the vacum lines i believe are where they should be. i used the stock mustang cam. mustang pushrods because they looked the same. any ideas?
​
Click to expand...
I just noticed this, did it idle rough before you put the explorer heads and intake on it?
 
You must log in or register to reply here.