Question about 2004 Ford Econoline

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Engine will not turn over when hot. if it is the

Engine will not turn over when hot. if it is the starter relay, what is its location in the vehicle?

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I'll assume this is something like an E-150 with a gas engine. If the engine cranks over normally when cold but then cranks very slowly once the engine is fully warmed up then you most likely have a failing starter. What happens is that when the windings get hot they aren't able to produce enough power to properly spin the starter. Once the windings cool off they work better and the engine will crank normally or nearly normally. If it doesn't make any attempt to crank at all then you could have a bad solenoid which is located at the right front of the engine compartment. I have tested these solenoids by cooling them off when the problem is happening to see if they then start to work again. Fairly rare for these solenoids to fail but they can. I see a lot more starter problems however. Good luck, hope this helps!

Posted on Jul 15, 2010

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Battery hot wire hot at solenoid but no fire at start switch.Can jump solenoid and it will turn over. What do I look for?


The start switch ? Do you mean the starter relay your jumping the solenoid on the starter and it starts right but when your in the vehicle and you turn the key you get nothing right if this is correct the starter relay is no good when you turn your key in the steering column lock that moves the ignition switch on the steering column sending voltage to the relay then the relay sends it to the solenoid which then powers up the stater motor then it cranks the engine//// so the relay is bad

Mar 31, 2015 | Cars & Trucks

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Trouble-shooting your Isuzu starter..


Basic operation of a starter:
Your engine's starter motor is an electrical motor that is used to rotate the engine in order to get it to fire up. This motor draws a large amont of current from the battery (in the order of 70 Amps and up). In order to supply power to the starter a solenoid is used, it acts as a switch between the battery and the starter motor. This solenoid also engages the starter gear with the engine's flywheel and disengages it once the engine is started. Because the circuit for the solenoid also draws a heavy current a further relay is needed to control it.
The diagram below shows the electrical layout of the starting system.
  • i : Battery
  • ii : Starter relay(located in the relay box in the engine compartment)
  • iii : Starter solenoid
  • iv : Starter incorporating solenoid and motor.
  • v : Engine
  • vi : Battery earth cable
  • vii : Engine earth cable
  • viii : Ignition fuse
  • ix : Starter fuse
  • x : Solenoid to starter supply cable
  • xi : Ignition switch
  • xii : Starter motor
When the ignition(xi) is turned it supplies power from the battery through fuse (viii) to the starter relay(ii).
The starter relay activates and supplies power to the starter solenoid(iii) via fuse (ix)
The starter solenoid activates and connects power from the battery to the starter via a short cable(x) between the solenoid and starter motor. This allows the starter motor to turn.

General trouble shooting.
Turn the ignition off.
1/ First you need to check that the fuses are intact.
Keep the ignition off. Place the vehicle in Neutral. Chock the wheels and engage the parking brake.
2/ To prove the starter motor, connect power from the battery positive to the cable (x). This must be done with jumper cables. Touch the jumper cable to the connector on the back of the solenoid where cable (x) connects. Take care not to short circuit the jumper cable to the engine or vehicle body. It can be a tight fit and might not always be possible. If you hear the starter motor spin then it is working along with the engine earth cable. If not, connect the negative lead of the jumper cable between the battery and the starter motor body or any other bare piece of metal on the engine and put the positive lead on cable (x) again. If the starter motor does not spin it needs to come out for repair/replacement. If it spins check both the battery earth cable and engine earth cable and repair where nescasary.
3/ Once the starter motor has been proved move on to the solenoid. Remove the thin wire from the solenoid. Using a small piece of wire, connect battery positive to the connector where you just took off the wire. The solenoid should kick in and the starter motor will turn the engine. If the solenoid does not kick in, remove the starter for repair/replacement of the solenoid. If the solenoid kicks in then replace the starter relay.

If the starting circuit still does not operate the fault will be in the wiring. This needs reasonable expertise and if you dont have a voltmeter handy is not advised.
Bear in mind on automatic transmission vehicles there is an additional switch (Mode switch) wired in between the ignition switch and the starter relay. This switch is on the transmission itself and if faulty will not allow the starter to operate even if steps 1 to 3 were successfull. The same goes for the anti theft/immobiliser system.

fd042ff.jpg
The following is specifically for Isuzu Trooper and Rodeo :
  • i : Battery
  • ii : Starter relay(located in the relay fuse box in the engine compartment designated X-17)
  • iii : Starter solenoid
  • iv : Starter incorporating solenoid and motor.
  • v : Engine
  • vi : Battery earth cable
  • vii : Engine earth cable
  • viii : 10A Starter fuse C-1(Fuse box: LH footwell on LHD vehicle, RH dash on RHD vehicle)
  • x : Solenoid to starter supply cable
  • xi : Ignition switch
  • xii : Starter motor
  • xiii : 80A Main fusible link FL-1(Relay fuse box)
  • xiv : 50 A Key SW fusible link FL-2(relay fuse box)
  • xv : Mode switch(A/T only - mounted on the side of the transmission) and for 6 cylinder manual transmission engines this is the clutch start switch mounted on the clutch pedal.
  • xvi : Anti theft system
  • B2 : B2 on ignition sitch
  • ST : ST on ignition switch
db79612.jpg


How to wire a relay

on Sep 17, 2010 | Isuzu Trooper Cars & Trucks

1 Answer

Wont start for 10 min


Have your charging system tested and include the Battery. Go to Autozone.com ,register your vehicle for free, get free wiring diagrams and Fusebox layouts. Have a starter draw test done.

Check the relays for the fuelpump, ignition, and PCM. Sometimes the horn relay can be the same part number and be interchanged.

What you are describing can be many things. You have more compression in a hot engine, you have different timing in a hot engine because vehicles run so lean today. The O2 sensors may be keeping the engine too lean to restart after a warmup. Relays can overload when hot and kick out the connections. Your fuelpump can be failing.

You did not indicate how far you drive when this happens. If you are driving 10 miles a weak battery will not recharge, but a 100 mile trip gives it more opportunity. The starter draw test will tell if the starter is bad. The starter may cool down overnight, but frequent restarts may heat the starter with it failing.

Jul 24, 2012 | 2007 Chevrolet Colorado (Extended Cab) New...

1 Answer

Clutch pedal position switch


There is no "clutch relay" on your vehicle. However, there is a starter relay which is patially controlled by the Clutch Pedal Position (CPP) switch. This is not very likely to "not work" just because the engine is hot. The starter relay is only engaged when the ignition switch is in the "START" position, so it does not get hot as a result of normal engine operation.

Jan 29, 2012 | 2004 Dodge Neon

1 Answer

2002 hyundai Santa fe will not start. I turn key and starter turned for 3 seconds then stopped and now when i turn key NOTHING. I hear a circuit sound in back of car when i turn key but no other sound. ...


Definitely a starting system problem. That sound you hear in the back is the fuel pump.

Starting system circuit components (besides wiring harness)
1. Ignition Key Switch - closes the starter relay control circuit to energize the relay and close the contacts inside the relay (you can check this by locating the relay in the underhood fuse/relay box and have a friend turn the key while you listen/feel if the relay 'clicks'
2. Starter Relay or its Contacts
3. Starter Solenoid - pushes/pulls the starter gear into the engine's flywheel ring-gear and its contacts close to provide battery power to the starter itself.
4. Starter itself - poor brush contact with the armature's commutator will prevent the starter to spin/turn

If you are 'Electrically' talented, you can check to see if you're getting battery power to the starter solenoid by using a simple 12 volt test light/bulb. Connect one lead to the starter solenoid terminal and the other to chassis/engine ground and have a buddy turn the ignition key - if the light turns 'ON', then you know that particular circuit is OK but the starter solenoid is not energizing to push the starter gear into the flywheel ring-gear to turn the engine over. If it doesn't, the problem is elsewhere (wiring, starter relay, starter relay control circuit, etc).

You can have a qualified Hyundai Service Technician properly diagnose your vehicle. OR, you can Go to www.hmaservice.com and register your vehicle by VIN #.. you'll then have access to wiring diagrams, shop manuals, service bulletins, illustrations, etc.

Aug 25, 2011 | 2003 Hyundai Santa Fe

3 Answers

I owned a 96 nissan sentra and am be perform a lot repair and replacing items and still have problem,it does work for while but when get hot doesn't turn on at all after cold down start again


When it is hot, if the starter will not turn the engine over, or the starter is not turning at all, replace the starter as it is failing due to the heat.

If the car is cutting off when it heats up, and not starting again until it has cooled down, this means the ECU, or a sensor is failing under the heat.

Jun 21, 2011 | 1996 Nissan Sentra

1 Answer

How to replace a starter for a 96 toyota 4runner, 4wd, 6cyl


  1. Connect the battery ammeter to the starter as shown in the illustration.



0900c15280060948.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 4: Make the connections to the battery, ammeter and starter as shown here

  1. Check the rotation of the starter, it must be smooth and steady with the pinion gear moving outwards. Compare the ammeter reading to the starter specifications chart.

REMOVAL & INSTALLATION

See Figure 5
Replacing the starter while the engine is cold is recommended. A hot engine can result in personal injury.
  1. Disconnect the negative battery cable.
  2. Remove the nut and disconnect the battery cable from the magnetic switch on the starter motor.
  3. Disconnect the remaining electrical connections at the starter.
  4. Remove the nuts and/or bolts securing the starter to the bell housing, then pull the starter toward the front of the vehicle to remove.

To install:
  1. Insert the starter into the bell housing being sure that the starter drive teeth are engaged with the flywheel teeth, not jammed against the flywheel.
  2. Tighten the attaching hardware to 29 ft. lbs. (39 Nm) and replace all electrical connections.



0900c15280060949.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: Exploded view of a common starter mounting found on Toyota trucks

  1. Connect the positive battery cable (starter wire) to the starter.
  2. Connect the negative battery cable.

RELAY REPLACEMENT

See Figure 6
The starter relays on most of your Toyota trucks are located either in the relay block in the engine compartment or on the driver's side junction block. The cover for the relay compartments should be marked, "starter'' or the relay will have a part number with a suffix of 28300-XXXXX. Simply locate the relay, pull it out, and install a new one if needed.


0900c1528006094a.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 6: The relay may be located in the driver's side junction block or in the engine compartment relay block

Feb 05, 2011 | 1996 Toyota 4Runner

1 Answer

Car will start no sound nothing,but had battery tested and is working great.could starter be the cause it is 1998 plymouth


1. Check the Starter Relay located in the PDC = Power Distribution Center located in the engine compartment on the left side. Remove the cover. The Fuse and Relay location/identification should be on the back (inside) of the cover. Also check your owners manual for addtional information on the Fuse and Relay identification/location.
2. After locating the Starter Relay: There should be a Spare Relay; IF NOT then LOCATE a non-engine operation Relay (on a function that works!) of similar Type and Size and switch these out. Again check for Starter Operation. If this works: then the original Relay is bad and must be replaced. If it does not work, and the other non-engine function you switched out with does still work, then the Relay was not the problem.
If this does not work:
3. With a partner at the wheel: You go under the front of the vehicle. Locate the Starter which should be on the front of the engine. Using a heavy gage jumper wire. Touch one end of the jumper wire to the large (red) wire connection (bolt/nut). Touch the other end to the main body of the Starter Motor. The Starter has two components: the Starter Solenoid and the Starter Motor. They are integrated/combined into one unit. The Starter Solenoid is the Smaller of the cylindrical shapes. The Starter Motor is the Larger of the cylindrical shapes. Have your partner turn the Key to the Start Position. If it Starts, then the Starter Solenoid is bad and the Starter (Solenoid & Motor) Unit must be replaced.
Let me know if this helped, or if you have additional questions or information. Feel free to contact me on FixYa.com!

Jan 11, 2010 | 1998 Plymouth Voyager

2 Answers

2002 mercury mountaineer 4.0 starter relay location


The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle’s main electrical systems
from overloads.
The starter relay is in position #56 of that box.

Mar 23, 2009 | 2007 Mercury Mountaineer

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