05 Ranger 3.0 V6 Cranks but won’t start
#29
Okay so has new fuel pump and pressure check is 60-65PSI at schrader valve. It still isn’t getting fuel like it should. If I cycle the ignition 4-5times it’ll try and start but just can’t quite do it. I don’t see a dampener/regulator on fuel rail. I’ve called the parts store and asked for a price quote on one and they say we aren’t showing one for that vehicle. I don’t believe it has one but still not sure what the heck is wrong with this thing.
Make sure the connection is clean and secure on the crank shaft position sensor too.
Pull the connection and inspect for corrosion on the contacts.
Last edited by Jeff R 1; 10-29-2017 at 01:52 PM.
#30
#31
Did some more reading and found this.
https://www.ranger-forums.com/4-0l-o...6/#post2125403
When it was running, and with the engine fully warmed up, did it run properly ?
The link may suggest a faulty coolant sensor.
If it's not working the ECM has no way of telling when the engine is cold and t won't be "choked".
The sensor is located on the lower intake manifold at the front.
It looks like the temp gauge sensor, but will have two wires coming out of it, not just one.
EDIT:
What's your compression too ?
That should be ruled out as a possible cause.
How many miles in on it ?
https://www.ranger-forums.com/4-0l-o...6/#post2125403
When it was running, and with the engine fully warmed up, did it run properly ?
The link may suggest a faulty coolant sensor.
If it's not working the ECM has no way of telling when the engine is cold and t won't be "choked".
The sensor is located on the lower intake manifold at the front.
It looks like the temp gauge sensor, but will have two wires coming out of it, not just one.
EDIT:
What's your compression too ?
That should be ruled out as a possible cause.
How many miles in on it ?
#32
RF Veteran
iTrader: (1)
Doesn't matter what "they" add to the outside of a gasoline engine the engine just needs 3 things to start and run
1. Compression, above 120psi
2. Fuel, in the right mix with air
3. Spark, at the right time
So for now forget sensors or controls, forget anything electronic
50/50 test, Adding fuel manually to the engine
Remove large air tube from intake end, just a clamp to loosen
Open throttle and spray in gasoline or Quick Start(ether) into the engine
Try to start engine
If it starts and dies then fuel is the problem
If it doesn't start then Spark or compression is the problem
50/50 simple and fast
Once you know where to look THEN and only then can you start diagnostics
There is no tool or computer on this planet that can diagnose engine problems better than your brain and a little common sense
So don't guess, do the 50/50 test
If 50/50 test seems to complicated then do this
Crank engine over 3 times, count to 5 each time
Pull out 1 spark plug
Look at it's tip
If wet with fuel then spark/compression is the problem
If dry then fuel is the problem
Common sense is best tool in the box
1. Compression, above 120psi
2. Fuel, in the right mix with air
3. Spark, at the right time
So for now forget sensors or controls, forget anything electronic
50/50 test, Adding fuel manually to the engine
Remove large air tube from intake end, just a clamp to loosen
Open throttle and spray in gasoline or Quick Start(ether) into the engine
Try to start engine
If it starts and dies then fuel is the problem
If it doesn't start then Spark or compression is the problem
50/50 simple and fast
Once you know where to look THEN and only then can you start diagnostics
There is no tool or computer on this planet that can diagnose engine problems better than your brain and a little common sense
So don't guess, do the 50/50 test
If 50/50 test seems to complicated then do this
Crank engine over 3 times, count to 5 each time
Pull out 1 spark plug
Look at it's tip
If wet with fuel then spark/compression is the problem
If dry then fuel is the problem
Common sense is best tool in the box
#34
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