Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

My Ford Ranger won't run

  #1  
Old 05-03-2018
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My Ford Ranger won't run

I need help please I have a 94 Ford Ranger 2.3 the timing belt broke on it going down the road I put a timing belt on it time it according to the book and videos that I watched I am a mechanic work on cars all of my life but this thing still will not start change crank sensor still no good it will try to start but acts like it is out of town any information would be greatly appreciated thanks
 

Last edited by Rambo148; 05-03-2018 at 04:14 PM.
  #2  
Old 05-04-2018
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94 Ranger 2.3 wont run

Thanks for the info I will take a closer look and let you know
 
  #3  
Old 05-04-2018
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They show pictures of the wrong timing wish they were as pictures of how it is supposed to look when it is right LOL
 
  #4  
Old 05-04-2018
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https://www.ranger-forums.com/drivet...nt-run-154271/

Triangle to triangle
diamond to diamond
Is right

I show wrong pictures so show how easy it is to misread the shapes, a circle and triangle would have been better but circles don't have points, lol.
 
  #5  
Old 05-04-2018
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Originally Posted by RonD View Post
https://www.ranger-forums.com/drivet...nt-run-154271/

Triangle to triangle
diamond to diamond
Is right

I show wrong pictures so show how easy it is to misread the shapes, a circle and triangle would have been better but circles don't have points, lol.
This is the camshaft my timing cover is not in great shape actually probably needs a new one is this the diamond you are talking about that's on the gear I hope this is set right
 
  #6  
Old 05-04-2018
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Oil pump gear the book said on a 94 it really doesn't matter where this is don't know if that's true or not but it said they always put it to the top
 
  #7  
Old 05-04-2018
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My crank the keyway on the crank is straight up right beside of it like at 1 there is a circle on the gear book shows it to be pointing towards the slot I hope this is right this thing has been driving me crazy for about a week been working on it every day and still can't figure it out anything you can do to help me get this old truck going again would mean a lot I have had it since it was almost new bought it from my dad who passed away last year
 
  #8  
Old 05-04-2018
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Missed the year of your 2.3l no triangles or diamonds, sorry

Yes, line up those marks

Pictures here: https://www.ranger-forums.com/sohc-2...g-belt-144734/
 
  #9  
Old 05-04-2018
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I have them all lined up and it still will not start acts like it's not in time I'm stuck don't know what to do
 
  #10  
Old 05-04-2018
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Put compression gauge on one of the cylinders

Should show 150+ psi if valve timing is OK

1994-1997 2.3l ran 9.4:1 compression ratio so when new it would show 170psi
 
  #11  
Old 05-04-2018
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94 Ranger 2.3 wont run

Okay I went to town and rented compression tester number 1 and number 2 both of them is around 1:55
 
  #12  
Old 05-05-2018
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So timing belt is on and timed correctly, 155psi is good compression

Spray gasoline(just a bit) or Ether(Quick Start) into the intake and try to start engine, 50/50 test

If it starts runs and then dies, fuel flow is the new problem
If it doesn't start then Spark is the new problem

The computer has no connection to the starter motor
The computer only "knows" you want to start the engine when it sees timing pulse from the Crank sensor, located just above crank gear for timing belt.
It has 4 wires that come out of the rear front engine cover that run up to the ICM(ignition control module) located on the front of the lower intake manifold, faces the fan.

ICM controls the Spark, it is connected directly to the two coil packs
ICM sends the timing pulse, it gets from Crank sensor, to the Computer, computer uses that pulse to time fuel injectors.

So No Start when you add fuel manually means ICM is not working or not getting timing pulse from Crank sensor
Check wiring carefully on ICM, frayed wires are not uncommon when wire is 24 years old

One heads up, if checking for spark at the plugs
Only the exhaust side spark plugs and coil pack are on when starter motor is turning engine over
Intake side will start to work when RPMs are above 400, engine started.
This gives a hotter spark at the 4 spark plugs for cold starting
Both spark plugs in each cylinder spark at the same time when engine is running, there is no alternating or compression stroke/exhaust stroke switching
Both spark plugs fire each time a piston is at TDC(top dead center)
 
  #13  
Old 05-05-2018
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I have already put a new crank sensor on it actually tried two new ones and spraying gas in it still doesn't start it act like it wants to with or without spraying gas might turn over four or five times on its own and that's it
 
  #14  
Old 05-05-2018
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The crank positioning sensor there are a L4 series and a t series do you know what the difference is the one I bought and put on is a L4
 
  #15  
Old 05-05-2018
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okay I think I have track it down to a firing problem it is not heating on number 2 and 4 on the driver side according to what I ran you said the other side would not fire until about 400 RPM so I'm thinking maybe it's a coil pack fixing to check that out hope I'm right it has new plugs
 
  #16  
Old 05-05-2018
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94 Ranger 2.3 wont run

Whoops I'm sorry 2 and 3 or not firing both of the coil packs are the same so I swap them around and they're still not firing 2 + 3 what could be the problem
 
  #17  
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Ford coil packs for the 4cyl have 2 coils inside, not 4
One coil fires 1 and 4 plugs, the other fires 2 and 3 plugs

Same for both coli packs

So 1 and 4 fire at the same time, as do 2 and 3, each at TDC

On the coil pack will be 3 wires, center wire should be Red, and that will have 12volts with key on, each outside wire GROUNDS the coil on that end/side

Picture here: http://www.route66hotrodhigh.com/ima.../CoilPack2.jpg

1 and 4 share same coil in that pack and same Ground wire, 2 and 3 share the other coil.

To have both packs not work for 2 and 3 would be an extreme longshot, so my guess would be that Ground wire at that connector or at the ICM is faulty
Could be ICM as well they can be tested at most auto parts stores, and are known for failing

Yes, coil pack can be tested with OHM meter pretty easily
Video here: youtube.com/watch?v=c1zhgsnyZWw

Its for 6 cylinder but testing is the same, and "good readings" will be the same
 

Last edited by RonD; 05-05-2018 at 06:46 PM.
  #18  
Old 05-06-2018
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94 Ranger 2.3 wont run

Okay I will check it out thanks for the information I appreciate it very much
 
  #19  
Old 05-06-2018
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94 Ranger 2.3 wont run

Okay I check it out what I found out was the boat when facing the front of the truck last warm boat on ICM is broke off and if I'm not mistaking that's for ground what can I do now
 
  #20  
Old 05-06-2018
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Replace the bolt

Take ICM off and remove broke bolt and replace it


I assume engine ran OK before timing belt change????

If so then someone else, previous owner, may have found a way to ground it, look for that, maybe you took it off when doing the belt work and didn't put it back on
 
  #21  
Old 05-06-2018
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94 Ranger 2.3 wont run

Yes it ran fine before the belt broke I got the boat drilled out bought a new i c m had the old one check they said it was bad came back put it on now 2 and 3 is firing but it was still will not run still acts like the timing is off Spitz a little back to the exhaust I'm at a loss
 
  #22  
Old 05-06-2018
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Well compression above 120psi will allow engine to start, you have 150+
Crank sensor times spark, and it spark at every TDC of every piston, not like a distributor did.

The coil pack connector can only go in one way, so 1/4, 2/3 can't be reversed

And when you add fuel manually it still won't start?

1994 shouldn't have a Cam Sensor, if it does unplug it
Cam sensor reads AUX gear as it spins, it sits on the back of the gear, 2 wire connector, its not inside timing belt cover.

If you can lay your hands on an old style timing light you can view when #1 spark is happening, the crank pulley and front cover should still have timing marks
 
  #23  
Old 05-06-2018
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94 Ranger 2.3 wont run

I have checked firing order it's okay it doesn't have a camshaft sensor I do have a old timing light I will try that and see what I can come up with thanks for the information no it does not run if I mainly put gas in it I checked on the fuel rail where valve stem is it's getting fuel
 
  #24  
Old 05-06-2018
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Valve stem tells you if there is fuel pressure from the fuel pump

Fuel injectors have to open to get fuel into the intake, and they are Timed just like the spark is
So pressure at the rail is GOOD, but doesn't mean engine is getting any gas
 
  #25  
Old 05-06-2018
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94 Ranger 2.3 wont run

Okay thanks so much I wish you was here I bet you can figure it out I will get back to you when I check with a timing light
 

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