Engine Swap Help

Jacked93 · 07-22-2004, 04:35 PM

Just got done with the engine swap in my 91 sport. I put in a new/used 4.0 in it. Anyway there is a plug on the main engine harness that I can't seem to find a home for. The plug comes out of the wiring harness that runs along the firewall, right where the harness comes away from the firewall,(at the heater box, and directly across from the coil pack) there is a plug that branches out with three wires. I have no idea where it goes. I have a 93 four door and this plug is non existent on it, so I am out of ideas.

The truck doesn't want to start and I am not sure if this plug has anything to do with it or not. The motor cranks over, but I get exhaust out of the intake, seems as if timing is off. It is getting spark and fuel. I am done for tonight, but would appreciate any help anyone can give me.

Thanks
Nick

Jacked93 · 07-23-2004, 04:47 PM

Come on I would like to have this running this weekend, someone has to know something.

Anyone?????

paul99explorer · 07-23-2004, 05:00 PM

What year did the 4.0 come from?

Jacked93 · 07-23-2004, 05:17 PM

The guy said it was a 95 or 96, but I don't think so, because it has the aluminum intake on it, not the plastic one.

Jacked93 · 07-25-2004, 03:41 PM

I am out of ideas, for some reason air is exiting out of the intake. I can't think of anything other than the cam and crank timing are off. Anyone have any ideas???

Oversquare · 07-25-2004, 08:17 PM

I bet your cam is 180 off the crank. Pull the timing belt and double check that the dots line up.

-B

Jacked93 · 07-26-2004, 10:42 PM

I am going to check into this tomorrow, but I am thinking that isn't the problem, cause the guy said this motor came out of a running truck.

Can anyone think of what else could cause air to be forced out of the intake?????

Anyone???

*boominXplorer* · 07-26-2004, 11:03 PM

a valve might be stuck making air compressed and the only way out is up? How long did the motor sit? If it sat for a little while with no exhaust or intake manifolds on they will rust up quick. You might end up having to swap the heads from the old motor to the donor motor

*boominXplorer* · 07-26-2004, 11:04 PM

Oh and the plug kinda sounds like it has something to do with EGR

Oversquare · 07-27-2004, 10:13 AM

The only other time I've had something like this was when the distributor was installed 180 off. But I don't think you can do that on our current ignitions.

-Brad

07-22-2004, 04:35 PM	#1
Jacked93 Wannabe Elite Explorer Parker, Colorado 93 XLT Join Date: Mar 2002 Posts: 299 Vehicle Specs (Original Poster)	Engine Swap Help, It won't start Just got done with the engine swap in my 91 sport. I put in a new/used 4.0 in it. Anyway there is a plug on the main engine harness that I can't seem to find a home for. The plug comes out of the wiring harness that runs along the firewall, right where the harness comes away from the firewall,(at the heater box, and directly across from the coil pack) there is a plug that branches out with three wires. I have no idea where it goes. I have a 93 four door and this plug is non existent on it, so I am out of ideas. The truck doesn't want to start and I am not sure if this plug has anything to do with it or not. The motor cranks over, but I get exhaust out of the intake, seems as if timing is off. It is getting spark and fuel. I am done for tonight, but would appreciate any help anyone can give me. Thanks Nick __________________ Nick Parker, Colorado 93 XLT with a High Pinon D44 My new project 91 Sport Take a look it won't look like this for long. Last edited by Jacked93; 07-23-2004 at 04:36 PM.

07-23-2004, 04:47 PM	#2
Jacked93 Wannabe Elite Explorer Parker, Colorado 93 XLT Join Date: Mar 2002 Posts: 299 Vehicle Specs (Original Poster)	Come on I would like to have this running this weekend, someone has to know something. Anyone????? __________________ Nick Parker, Colorado 93 XLT with a High Pinon D44 My new project 91 Sport Take a look it won't look like this for long.

07-23-2004, 05:17 PM	#4
Jacked93 Wannabe Elite Explorer Parker, Colorado 93 XLT Join Date: Mar 2002 Posts: 299 Vehicle Specs (Original Poster)	The guy said it was a 95 or 96, but I don't think so, because it has the aluminum intake on it, not the plastic one. __________________ Nick Parker, Colorado 93 XLT with a High Pinon D44 My new project 91 Sport Take a look it won't look like this for long.

07-25-2004, 03:41 PM	#5
Jacked93 Wannabe Elite Explorer Parker, Colorado 93 XLT Join Date: Mar 2002 Posts: 299 Vehicle Specs (Original Poster)	I am out of ideas, for some reason air is exiting out of the intake. I can't think of anything other than the cam and crank timing are off. Anyone have any ideas??? __________________ Nick Parker, Colorado 93 XLT with a High Pinon D44 My new project 91 Sport Take a look it won't look like this for long.

07-26-2004, 10:42 PM	#7
Jacked93 Wannabe Elite Explorer Parker, Colorado 93 XLT Join Date: Mar 2002 Posts: 299 Vehicle Specs (Original Poster)	I am going to check into this tomorrow, but I am thinking that isn't the problem, cause the guy said this motor came out of a running truck. Can anyone think of what else could cause air to be forced out of the intake????? Anyone??? __________________ Nick Parker, Colorado 93 XLT with a High Pinon D44 My new project 91 Sport Take a look it won't look like this for long.

07-23-2004, 05:00 PM	#3
paul99explorer Wannabe Elite Explorer Charleston, WV 99 Sport Join Date: Jul 2004 Posts: 40 Vehicle Specs	What year did the 4.0 come from?

07-25-2004, 08:17 PM	#6
Oversquare Wannabe Elite Explorer Wine Country '00 XLT 5.0 AWD Join Date: Jun 2004 Posts: 191 Vehicle Specs	I bet your cam is 180 off the crank. Pull the timing belt and double check that the dots line up. -B

07-26-2004, 11:03 PM	#8
boominXplorer Elite Explorer Virginia Beach, Va 00 4x4 Mounty Join Date: Sep 2002 Posts: 6,038 Vehicle Specs	a valve might be stuck making air compressed and the only way out is up? How long did the motor sit? If it sat for a little while with no exhaust or intake manifolds on they will rust up quick. You might end up having to swap the heads from the old motor to the donor motor __________________ 1998 Mountaineer 5.0 2wd - Mac intake, Ported intake, FMS headers, 3" Exhaust, E-fan, SCT tuned, Baumenn Shift Kit, MSD, 4.10 l/s, Lowered 3/2 on 18x9 Cobra r's, HID's 2002 F250 Crew Cab SB 7.3 Diesel 4x4 - 4" MBRP exhaust, AIH delete, SCT Livewire 2001 Ranger ext cab 4x4 - 5.0/4r70/4406 swap in progress (2) 97 Mountaineers for parts 98 Sport for Parts My eBay auctions

07-26-2004, 11:04 PM	#9
boominXplorer Elite Explorer Virginia Beach, Va 00 4x4 Mounty Join Date: Sep 2002 Posts: 6,038 Vehicle Specs	Oh and the plug kinda sounds like it has something to do with EGR __________________ 1998 Mountaineer 5.0 2wd - Mac intake, Ported intake, FMS headers, 3" Exhaust, E-fan, SCT tuned, Baumenn Shift Kit, MSD, 4.10 l/s, Lowered 3/2 on 18x9 Cobra r's, HID's 2002 F250 Crew Cab SB 7.3 Diesel 4x4 - 4" MBRP exhaust, AIH delete, SCT Livewire 2001 Ranger ext cab 4x4 - 5.0/4r70/4406 swap in progress (2) 97 Mountaineers for parts 98 Sport for Parts My eBay auctions

07-27-2004, 10:13 AM	#10
Oversquare Wannabe Elite Explorer Wine Country '00 XLT 5.0 AWD Join Date: Jun 2004 Posts: 191 Vehicle Specs	The only other time I've had something like this was when the distributor was installed 180 off. But I don't think you can do that on our current ignitions. -Brad