Nose down engine off


edwardhawkins37

New member
Joined
Feb 18, 2019
Messages
6
Reaction score
0
Points
1
Location
Canton, GA
Vehicle Year
1994
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
2WD
Odd occurrences. I have a 94 Ranger 4.0L auto. Twice now I have had to do a hard break and naturally the nose of the truck dipped. On one occasion the engine shut off but recranked on the first try. On the second occasion the engine hesitated like it was going to shut off. I have newish (last 2 years) coil, plugs, wires and fuel pump. Brand new battery. Not sure which way to go. Fuel pressure regulator??? Hard to diagnose when it only does it on a hard brake and it's a model that does not have ODBII. Any ideas?

Thanks
 


Rock Auto 5% Discount Code: 32B05A80BF19AF Expires: July 1st, 2020

Dirtman

I pooped in the furnace
Supporting Member
EMT / Paramedic
Joined
May 28, 2018
Messages
10,203
Reaction score
5,979
Points
113
Location
Over there --->
Vehicle Year
2009
Make / Model
Ford
Engine Type
2.3 (4 Cylinder)
Engine Size
466.63 teaspoons.
Transmission
Automatic
2WD / 4WD
2WD
Tire Size
So friggin big!
My credo
RUM HAM!!!
You running with the gas tank nearly empty? :dunno:
 

Ramcharger90

Well-known member
Article Contributor
V8 Engine Swap
Joined
Feb 11, 2019
Messages
1,832
Reaction score
784
Points
113
Location
N/A na
Vehicle Year
1990
Make / Model
Ford Ranger
Engine Type
V8
Engine Size
306, Bcam,
Transmission
Manual
2WD / 4WD
2WD
Try not to follow so close 🤷‍♂️
6 second rule.....

Does your truck have a low oil shutoff? Do you have enough oil in it?
How low are you running the tank? Are your rear brakes locking up?
 

Shran

Junk Collector
Forum Moderator
Supporting Member
Article Contributor
V8 Engine Swap
Solid Axle Swap
Joined
Mar 4, 2008
Messages
5,086
Reaction score
651
Points
113
Location
Rapid City SD
My 4 cylinder truck kinda does this on occasion, I sometimes will return to idle from a hard acceleration, and disengage the clutch and it dies, or less often it just dies when coasting up to a stop light. It always fires right back up. Very irritating but it's been like that for years and I haven't figured out how to fix it yet. I suspect it's either a dirty idle air control valve choking off the engine or a low fuel pressure issue, there are other issues that I won't get into here but those are the first things I'd check in your case.
 

Ramcharger90

Well-known member
Article Contributor
V8 Engine Swap
Joined
Feb 11, 2019
Messages
1,832
Reaction score
784
Points
113
Location
N/A na
Vehicle Year
1990
Make / Model
Ford Ranger
Engine Type
V8
Engine Size
306, Bcam,
Transmission
Manual
2WD / 4WD
2WD
It could be the egr 🤷‍♂️ my 96 exploder Eddie Bauer with the 4.0 would die sometimes....

Normally after I drove for 15mins it then parked at the store for about 10mins then started it up, then it would stall after it tried to get back to idle. If i started it again it would hesitate and act like it was gonna die but if I hit the throttle it ran fine after a small rev.... I replaced everything but the egr tube and valve so maybe it could be related 🤷‍♂️

I was told after I sold it that was a clogged egr tube symptom
 

RangerFabWorks

The O.G blackwidow67
Forum Moderator
Supporting Member
V8 Engine Swap
TRS 20th Anniversary
Joined
Jan 31, 2009
Messages
4,942
Reaction score
372
Points
83
Age
28
Location
Long Island, New York
Vehicle Year
1990
Make / Model
Ford
Engine Size
302
Transmission
Manual
If hard breaking is what causes it. Sounds like the torque converter isn’t unlocking fast enough.
 

RegularGuy

Member
Joined
Apr 20, 2020
Messages
62
Reaction score
11
Points
8
Location
Belingham, WA
Vehicle Year
2007
Make / Model
Ford Ranger
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
A bit of easy diagnosis, park the truck facing downward a steep hill and then while parked, hit the brakes as you've done before...

If the truck still dies, it would likely be vacuum assist related issue

If the truck doesn't die, my first guess would be the torque converter as stated above, or possibly the fuel shutoff switch (I tripped mine in an extremely minor collision, they can be a little sensitive)
 


Top