• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Replacing injectors

RangerGoolz

Member
Joined
Apr 4, 2022
Messages
32
Reaction score
8
Points
8
Location
Colorado
Vehicle Year
1986
Make / Model
Ford Ranger
Transmission
Manual
Before I dive in I thought I would reach out for pointers on replacing injectors in my 2.9. I've never done this before. Am I correct that this can be done without removing the upper intake and fuel lines? Any other tips or pointers that you all can share would be greatly appreciated. Thank you
 


dirtymike

Active Member
Supporting Member
U.S. Military - Veteran
Joined
Dec 30, 2010
Messages
527
Reaction score
111
Points
43
Age
61
Location
knoxville TN
Vehicle Year
1987
Make / Model
Ranger lwb
Engine Type
2.9 V6
Transmission
Manual
2WD / 4WD
4WD
Total Lift
1 inch spacers
Tire Size
P23575R15
My credo
Do unto others then Split-probasti me et chognuisti me
Ive never been able to take the injectors out without first taking off the upper plenum and the fuel manifold first. Fuel line would be the first thing i disconnected.
 

gaz

Well-Known Member
Joined
Sep 21, 2007
Messages
1,077
Reaction score
353
Points
83
Location
Wa, Bremerton 98310
Vehicle Year
1987
Make / Model
Ford
Engine Size
Ranger 2.9l, BII 4.0l
2WD / 4WD
4WD
Total Lift
Ranger 6", BII 4"
Total Drop
Ranger 5sp, BII A4LD
Tire Size
Ranger 32", BII 28.5"
- remove the battery negative cable.
- depressurize the fuel system; open the filler cap
- depressurize the fuel rail; scribe or jeweler's screwdriver to the fuel rail pressure test valve.
- Remove the upper intake manifold (it's much easier/simpler) this way.
- buy the fuel line tools to make opening the fuel line quick disconnects possible.
- get a new set of hats and O-rings.
- use a small amount of petroleum jelly when working O-rings.
- test and clean the old injectors prior to replacing them.
- test and clean new injectors before installing them.
- install the fuel rail hold down bolt for the driver's side last, with the other 2 not quite finger tight only.
 

RumPunch

Well-Known Member
Supporting Member
Law Enforcement
Joined
Jan 12, 2021
Messages
566
Reaction score
455
Points
63
Location
Walkerton Va 23177
Vehicle Year
1988
Make / Model
Ford Bronco II
Engine Type
2.9 V6
Transmission
Automatic
2WD / 4WD
4WD
Where are you sourcing injectors? I have a thread in the 2.9 forum where I replaced all with a lot of specs and #'s when I did a full rebuild. That being said I just swapped all of them back out to the originals as they are flowing excessive amounts of fuel. I would look at sending them off and hack g redone versus replace.
 

dirtymike

Active Member
Supporting Member
U.S. Military - Veteran
Joined
Dec 30, 2010
Messages
527
Reaction score
111
Points
43
Age
61
Location
knoxville TN
Vehicle Year
1987
Make / Model
Ranger lwb
Engine Type
2.9 V6
Transmission
Manual
2WD / 4WD
4WD
Total Lift
1 inch spacers
Tire Size
P23575R15
My credo
Do unto others then Split-probasti me et chognuisti me
Your not rebuilding the injectors that are in it now?
 

RangerGoolz

Member
Joined
Apr 4, 2022
Messages
32
Reaction score
8
Points
8
Location
Colorado
Vehicle Year
1986
Make / Model
Ford Ranger
Transmission
Manual
I wanted to say thank you to you guys for the guidance. New injectors went in today. My truck idles buttery smooth now, no shutters like previously. Seems to have more power and no longer the slight miss that I was getting in the higher rpm range. The original injectors were very dirty. My 86 has 114k miles so I know it sat for a good while. I could not be happier. Thank you.
 

JerrySab

Member
Supporting Member
Joined
Jul 11, 2020
Messages
124
Reaction score
19
Points
18
Age
41
Location
Los Angeles
Vehicle Year
1988
Make / Model
Ford Ranger
Engine Type
2.9 V6
Transmission
Automatic
2WD / 4WD
2WD

Saxwing1988

Member
Joined
Dec 28, 2020
Messages
46
Reaction score
8
Points
8
Location
spokane
Vehicle Year
1999
Make / Model
Ford ranger
Engine Type
3.0 V6
Transmission
Manual
2WD / 4WD
4WD
Total Lift
3” with torsion crank
Tire Size
33x12.5
Take pictures as you take it apart. Luckily all the harnesses and vacuum and so on are all one size fits all or their a certain length so it’s easy to put it back together but I’d take pictures if you haven’t done it before. It’s really east though.
 

Sponsored Ad


Sponsored Ad

Top