5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

4cyl to V8 swap

Thread Tools
 
Search this Thread
 
Old 12-01-2005, 12:46 AM
  #1  
bkfoxbody
Thread Starter
 
bkfoxbody's Avatar
 
Join Date: Oct 2005
Location:
Posts: 10
Default 4cyl to V8 swap

ok last weekend i took the motor out of my peice of crap 91 Hatch and put it in an 89 Coupe that used to be a four cylinder, all of this in 3 days...so now that the motor is in the new body i cannot get it to start....i have no clue whats up....i dont get a fuel pump with the key on run and i dont get the motor to turn over when i turn the key...so guys heres where you come in...what do i check next??? i have gone over all my grounds and yes the fuel pump comes on when i cross the relay. But if anyone has any helpful info...or something that i should check please help me.....thanks....other than that i love the coupe...nice and clean and a better car overall.
bkfoxbody is offline  
Old 12-01-2005, 12:52 AM
  #2  
schwindty
4th Gear Member
 
schwindty's Avatar
 
Join Date: Dec 2004
Location:
Posts: 1,668
Default RE: 4cyl to V8 swap

Pull the plugs yet? What condition are they in? Check for spark? Turn the engine over with the plugs out see if any fuel mist comes out.... CArbed or EFI?
schwindty is offline  
Old 12-01-2005, 01:05 AM
  #3  
rmodel65
Yukon Cornelius
 
rmodel65's Avatar
 
Join Date: Oct 2005
Location: deep in the heart of dixie GEORGIA
Posts: 11,808
Default RE: 4cyl to V8 swap

is the fuel pump saftey switch tripped?it is located in the trunk behind the trim panels
rmodel65 is offline  
Old 12-01-2005, 03:41 AM
  #4  
spudz
2nd Gear Member
 
spudz's Avatar
 
Join Date: Nov 2005
Posts: 202
Default RE: 4cyl to V8 swap

wanna sell the hatch?? lol All mustangs are projects....even the ratty ones... BTW u did swap the harness an computer didn't you??? If u did and hooked everything up from the old car it SHOULD run...
spudz is offline  
Old 12-01-2005, 04:28 AM
  #5  
88BlueGT
6th Gear Member
 
88BlueGT's Avatar
 
Join Date: Sep 2005
Location: Hamilton, NJ
Posts: 15,042
Default RE: 4cyl to V8 swap

Have you just gone over everything again? I mean to swap a motor in 3 days is pretty damn fast. I would go through EVERYTHING and you might of forgot something small. I would do that and see what turns up.
88BlueGT is offline  
Old 12-01-2005, 06:32 PM
  #6  
bkfoxbody
Thread Starter
 
bkfoxbody's Avatar
 
Join Date: Oct 2005
Location:
Posts: 10
Default RE: 4cyl to V8 swap

ok went thru grounds again....checked the inertia switch for the fuel pump and all fuses.....yes the harness was switched over to the new car and im not even worried about spark right now because i cant even get it to turn over....i can turn it over from the EEC relay inside the car and it will fire but the starter stays on when i cross the wires so i cant leave it running.....it just seems like the car doesn't know that i am turning the key....because the key wont send a signal to any of the relays. so yea....im lost...ive been staring at wiring diagrams and following wires for 2 days..and i want it to run now
bkfoxbody is offline  
Old 12-01-2005, 06:33 PM
  #7  
bkfoxbody
Thread Starter
 
bkfoxbody's Avatar
 
Join Date: Oct 2005
Location:
Posts: 10
Default RE: 4cyl to V8 swap

the stripped hatch went to a friend for 70 bucks and a pair of VW tires
bkfoxbody is offline  
Old 12-01-2005, 07:59 PM
  #8  
philthy89fifty
4th Gear Member
 
philthy89fifty's Avatar
 
Join Date: Mar 2005
Location:
Posts: 1,183
Default RE: 4cyl to V8 swap

clutch safety switch
philthy89fifty is offline  
Old 12-01-2005, 08:30 PM
  #9  
bkfoxbody
Thread Starter
 
bkfoxbody's Avatar
 
Join Date: Oct 2005
Location:
Posts: 10
Default RE: 4cyl to V8 swap

yes thats what i was thinking....so its an auto...where is the neutral safety switch?
bkfoxbody is offline  
Old 12-01-2005, 09:30 PM
  #10  
rob_boura
2nd Gear Member
 
rob_boura's Avatar
 
Join Date: Nov 2005
Location:
Posts: 181
Default RE: 4cyl to V8 swap

the neturas safety switch is on the tranny by the linkage it is held in with two bolts any more questions hit me up got the chilton in front of me
rob_boura is offline  


Quick Reply: 4cyl to V8 swap



All times are GMT -5. The time now is 01:39 PM.