|
Wont run
Hi guys my 2000 3.0 will start uf i hold the pedal to the floor and crank but wont start on uts own has good spark and has good fuel pressure i am at a stand still dont know what to look at now please help?
|
Put some gasoline in a spray bottle or get some Quick Start(ether in a spray can)
Remove air tube on intake, open throttle and spray fuel into the intake Try to start engine, do NOT touch gas pedal If it starts and then dies when fuel you added runs out then no fuel is getting into the engine, fuel injector issue if you have pressure, 60psi fuel pressure is expected in 2000, and pressure should hold above 45psi for MONTHS when engine/key is off If engine doesn't start then spark or compression issue 50/50 test No fuel injected engine should start with gas pedal pushed down to the floor??? If fuel pressure is not holding above 45psi then you may have an injector that is shorted or stuck open, flooding the engine, so pressing gas pedal down is letting in enough air for it to fire. Key on, RPMs at 0, and Throttle Wide OPEN(WOT) = Turn Off ALL Fuel injectors It is called "Clear Flooded Engine Routine" and all engine computers have this as part of their software. The TPS(throttle position sensor) sends the computer above 4.5volt at WOT, and thats what sets Clear Flooded Engine, no fuel injectors If TPS should short out internally then that could cause a No Start, have only seen that happen one time on a 2.5l but it did happen So unplug TPS, 3 wire connector, and then try to start 2000 Ranger V6 will have PATS(passive anti-theft system) which turns off the fuel injectors There is a Theft light in the dash, it should come on with the key and go off, if it doesn't come on then bulb may be burnt out Rapid flashing Theft Light means the Key did not pass PATS test so No Start is because of bad key PATS often disabled starter motor as well but not on all models |
Originally Posted by RonD
(Post 2126597)
Put some gasoline in a spray bottle or get some Quick Start(ether in a spray can)
Remove air tube on intake, open throttle and spray fuel into the intake Try to start engine, do NOT touch gas pedal If it starts and then dies when fuel you added runs out then no fuel is getting into the engine, fuel injector issue if you have pressure, 60psi fuel pressure is expected in 2000, and pressure should hold above 45psi for MONTHS when engine/key is off If engine doesn't start then spark or compression issue 50/50 test No fuel injected engine should start with gas pedal pushed down to the floor??? If fuel pressure is not holding above 45psi then you may have an injector that is shorted or stuck open, flooding the engine, so pressing gas pedal down is letting in enough air for it to fire. Key on, RPMs at 0, and Throttle Wide OPEN(WOT) = Turn Off ALL Fuel injectors It is called "Clear Flooded Engine Routine" and all engine computers have this as part of their software. The TPS(throttle position sensor) sends the computer above 4.5volt at WOT, and thats what sets Clear Flooded Engine, no fuel injectors If TPS should short out internally then that could cause a No Start, have only seen that happen one time on a 2.5l but it did happen So unplug TPS, 3 wire connector, and then try to start 2000 Ranger V6 will have PATS(passive anti-theft system) which turns off the fuel injectors There is a Theft light in the dash, it should come on with the key and go off, if it doesn't come on then bulb may be burnt out Rapid flashing Theft Light means the Key did not pass PATS test so No Start is because of bad key PATS often disabled starter motor as well but not on all models |
In 2000 the IAT(intake air temp) sensor is built into the MAF sensor
P0113 shouldn't cause the problem you have, it is a minor sensor that fine tunes air:fuel ratio for cold/warm weather Does fuel pressure hold above 45psi with engine off? If engine tries to start with gas pedal held down to the floor then you have a leaking injector Unplug Coil Pack, 4 wire connector Press gas pedal down to the floor and hold it down Crank engine over a few times, it will not start of course Pull out all the spark plugs You are looking for a WET tip, that will be the leaking injector cylinder, check them all Fuel injectors all get 12volts with key on Computer GROUNDS each injector to open it, so each injector is 1 ground wire that runs back to the computer, if that wire should short to metal...........injector is open when key is on |
Originally Posted by RonD
(Post 2126600)
In 2000 the IAT(intake air temp) sensor is built into the MAF sensor
P0113 shouldn't cause the problem you have, it is a minor sensor that fine tunes air:fuel ratio for cold/warm weather Does fuel pressure hold above 45psi with engine off? If engine tries to start with gas pedal held down to the floor then you have a leaking injector Unplug Coil Pack, 4 wire connector Press gas pedal down to the floor and hold it down Crank engine over a few times, it will not start of course Pull out all the spark plugs You are looking for a WET tip, that will be the leaking injector cylinder, check them all Fuel injectors all get 12volts with key on Computer GROUNDS each injector to open it, so each injector is 1 ground wire that runs back to the computer, if that wire should short to metal...........injector is open when key is on |
Originally Posted by RonD
(Post 2126600)
In 2000 the IAT(intake air temp) sensor is built into the MAF sensor
P0113 shouldn't cause the problem you have, it is a minor sensor that fine tunes air:fuel ratio for cold/warm weather Does fuel pressure hold above 45psi with engine off? If engine tries to start with gas pedal held down to the floor then you have a leaking injector Unplug Coil Pack, 4 wire connector Press gas pedal down to the floor and hold it down Crank engine over a few times, it will not start of course Pull out all the spark plugs You are looking for a WET tip, that will be the leaking injector cylinder, check them all Fuel injectors all get 12volts with key on Computer GROUNDS each injector to open it, so each injector is 1 ground wire that runs back to the computer, if that wire should short to metal...........injector is open when key is on |
Originally Posted by Ranger5427
(Post 2126605)
ill try with a pressure guage tomorrow and let you know if it doesnt
|
Is it dropping below 45?
|
Just did it again and it is slowly going down but not below 45psi
|
As i understand it, so long as it holds =>45 PSI when off, it's fine.
|
Originally Posted by MaDMaXX
(Post 2126610)
As i understand it, so long as it holds =>45 PSI when off, it's fine.
|
No leaking injectors then
Did you unplug the TPS and then try to start? |
Originally Posted by RonD
(Post 2126650)
No leaking injectors then
Did you unplug the TPS and then try to start? |
Originally Posted by Ranger5427
(Post 2126718)
no i havent i will try that tomorrow after work
|
Originally Posted by RonD
(Post 2126650)
No leaking injectors then
Did you unplug the TPS and then try to start? |
| All times are GMT -6. The time now is 09:05 AM. |
© 2026 MH Sub I, LLC dba Internet Brands