starting issue
Thread Starter
|
Posting Guru
Joined: Dec 2007
Posts: 1,265
Likes: 0
From: Metro Detroit, MI.
starting issue
brief summary: 2002 excursion 7.3
put key in and waited to start like always.
starter engauged but then stopped, motor didnt turn over.
attemped to start again like normal, starter never engauged the key just turns and acts like if i just turned on the power(radio).
no check engine light, batteries are fine. replaced the starter maybe 2 years ago with a DB one. attempted my AE, but nothing showed.
sorry it brief, but typing with off hand due to a broken collar bone on friday night. Can it get any more worse.
put key in and waited to start like always.
starter engauged but then stopped, motor didnt turn over.
attemped to start again like normal, starter never engauged the key just turns and acts like if i just turned on the power(radio).
no check engine light, batteries are fine. replaced the starter maybe 2 years ago with a DB one. attempted my AE, but nothing showed.
sorry it brief, but typing with off hand due to a broken collar bone on friday night. Can it get any more worse.
Hotshot
Joined: Oct 2003
Posts: 17,791
Likes: 98
From: Ashland City, TN
Double check battery connections and grounds.
Double check starter solenoid on fender. (this is most likely the issue)
Generally with weak start issues like this, it's drained batteries, weak batteries or bad connections.
I have a connection that constantly fusses up on mine and I'll get weak starts.
Double check starter solenoid on fender. (this is most likely the issue)
Generally with weak start issues like this, it's drained batteries, weak batteries or bad connections.
I have a connection that constantly fusses up on mine and I'll get weak starts.
Laughing Gas
Joined: Aug 2012
Posts: 915
Likes: 3
From: Palatka, FL
How many miles
Manual/Stick shift or Automatic?
If automatic then Put key in, step on brake and put gear shift in Neutral (N). Then try to start after WTS light goes out. This bypasses the safety switch in your Transmission. If it starts like this then there is a plug switch that may be able to be cleaned if you remove it. If cleaning does not work then you may need to purchase a new Switch. I don't have part numbers for that switch.
If it is manual try this first: Put the clutch in and SLIGHTLY move it in and out while keeping the key in the start position and see if it catches and spins over at any point in time. If that starts it....you need a Clutch Pedal Position Switch(CPP Switch) located on the rod attached to your clutch pedal(between pedal pivot pin and slave cylinder under dash)
If no start here then have an assistant push in the clutch all the way and leave the key in the run position and short the two LARGE LEADS on the Starter relay located on your passenger side. The side wall above the passenger wheel well close to your vacuum pump. It is the only relay at this location. It LOOKS like the Glow Plug Relay(GPR) and Air Intake Heater(AIH) relay. You could also tap on the relay to see if it picks up with the key in the START position.
You can also short this relay in the same fashion for a Automatic except you do not have to push in a clutch.
If you just apply 12 volts to the small post then it will check if the start relay actually works. It is the same as holding your start switch on.
Check All Positive and Negative LARGE CABLES for being tight and no corrosion.
End result.
Auto has safety switch for being in park on the transmission.
Start relay could be failing.
Manual has CPP Switch that could be going bad
Start relay could be failing
Either platform could also have loose leads but more likely the above problems
measure voltage and report back.
Dwayne
Manual/Stick shift or Automatic?
If automatic then Put key in, step on brake and put gear shift in Neutral (N). Then try to start after WTS light goes out. This bypasses the safety switch in your Transmission. If it starts like this then there is a plug switch that may be able to be cleaned if you remove it. If cleaning does not work then you may need to purchase a new Switch. I don't have part numbers for that switch.
If it is manual try this first: Put the clutch in and SLIGHTLY move it in and out while keeping the key in the start position and see if it catches and spins over at any point in time. If that starts it....you need a Clutch Pedal Position Switch(CPP Switch) located on the rod attached to your clutch pedal(between pedal pivot pin and slave cylinder under dash)
If no start here then have an assistant push in the clutch all the way and leave the key in the run position and short the two LARGE LEADS on the Starter relay located on your passenger side. The side wall above the passenger wheel well close to your vacuum pump. It is the only relay at this location. It LOOKS like the Glow Plug Relay(GPR) and Air Intake Heater(AIH) relay. You could also tap on the relay to see if it picks up with the key in the START position.
You can also short this relay in the same fashion for a Automatic except you do not have to push in a clutch.
If you just apply 12 volts to the small post then it will check if the start relay actually works. It is the same as holding your start switch on.
Check All Positive and Negative LARGE CABLES for being tight and no corrosion.
End result.
Auto has safety switch for being in park on the transmission.
Start relay could be failing.
Manual has CPP Switch that could be going bad
Start relay could be failing
Either platform could also have loose leads but more likely the above problems
measure voltage and report back.
Dwayne
Thread
Thread Starter
Forum
Replies
Last Post
USMCSDP
1987 - 1996 F150 & Larger F-Series Trucks
5
May 19, 2017 01:15 PM
mtgrzlyman
1999 - 2016 Super Duty
1
Jan 7, 2011 04:27 PM
