Question about 1995 Isuzu Rodeo

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1996 izuzu roeo electrical

No power to fuel pump ignition or blower motor the quarter support was the only thing replaced i looked for any damage in the wiring harness around the quarter support found none checked all fuses none blown

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  • coryheimerl Feb 10, 2009

    no power to fule pump or blower motor, fuel pump fuse was blown changed it but no power to the new fuse



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Check alternator:

There are 2 connectors on the alternater. The round one has 3 wires. If there is no voltage on the green wire when the engine is running the alternator is bad. I'm not sure what fails internally but the alternator can put out fine charging voltage on the main black lead and not have voltage on that green wire. That wire is a trigger for the fuel pump relay. Voltage goes to the main power relay then to idiot lights in the dash then back to trigger the fuel pump relay. Along the way it goes in and out of the oil pressure switch(sender at the back bottom of passenger side of block with 2 yellow wires). This switch cuts voltage to fuel pump if no oil pressure. The green wire from alt is a safety in case of collision ect. Engine not running> no alt voltage on that wire>no fuel pump pressure>no fire. If this wire is bad it will not show up on the standard auto store test. And is a common failure. I had an brand new Isuzu rebuilt OEM alternator that was bad like this.

Posted on Mar 06, 2009


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Engine fuse keeps blowing. what does it supply power to?

Possible causes:
- Fuse is under rated power.
- Short circuit in wiring harness.
- Any of the components may be drawing more current, for example fuel pump circuit, ignition system circuit, relays, blower motor, fuel system circuit and charging circuit etc.

Jul 04, 2014 | 1996 Plymouth Voyager


When your running late for work and your Car Won't Start you need answers fast...

<span><a>Engine Starting Problems </a></span> <a>Gasoline Engines </a> <a>Engine turns over, but will not start </a> <ol> <li>Check fuel level in fuel tank, add fuel if empty. </li> <li>Check BATTERY condition and state of charge. If voltage and load test below specification, charge or replace battery. </li> <li>Check battery terminal and cable condition and tightness. Clean terminals and replace damaged, worn or corroded cables. </li> <li>Check FUEL DELIVERY SYSTEM. If fuel is not reaching the fuel injectors, check for a loose electrical connector or defective fuse, relay or fuel pump and replace as necessary. </li> <li>Engine may have excessive wear or mechanical damage such as low CYLINDER CRANKING PRESSURE, a broken camshaft drive system, insufficient valve clearance or bent valves. </li> <li>Check for fuel contamination such as water in the fuel. During winter months, the water may freeze and cause a fuel restriction. Adding a fuel additive may help, however the fuel system may require draining and purging with fresh fuel. </li> <li>Check for IGNITION SYSTEM <a href=""></a> failure. Check for loose or shorted wires or damaged ignition system components. Check the SPARK PLUGS<a href=""></a> for excessive wear or incorrect electrode gap. If the problem is worse in wet weather, check for shorts between the spark plugs and the IGNITION COILS . </li> <li>Check the engine management system for a failed SENSOR <a href=""></a>or control module. </li></ol> <a>Engine does not turn over when attempting to start </a> <ol> <li>Check the battery state of charge and condition. If the dash lights are not visible or very dim when turning the ignition key on, the battery has either failed internally or discharged, the battery cables are loose, excessively corroded or damaged, or the alternator has failed or internally shorted, discharging the battery. Charge or replace the battery, clean or replace the battery cables, and check the alternator output. </li> <li>Check the operation of the neutral safety switch. On automatic transmission vehicles, try starting the vehicle in both Park and Neutral. On manual transmission vehicles, depress the clutch pedal and attempt to start. On some vehicles, these switches can be adjusted. Make sure the switches or wire connectors are not loose or damaged. Replace or adjust the switches as necessary. </li> <li>Check the starter motor, starter solenoid or relay, and starter motor cables and wires. Check the ground from the engine to the chassis. Make sure the wires are not loose, damaged, or corroded. If battery voltage is present at the starter relay, try using a remote starter to start the vehicle for test purposes only. Replace any damaged or corroded cables, in addition to replacing any failed components. </li> <li>Check the engine for seizure. If the engine has not been started for a long period of time, internal parts such as the rings may have rusted to the cylinder walls. The engine may have suffered internal damage, or could be hydro-locked from ingesting water. Remove the spark plugs and carefully attempt to rotate the engine using a suitable breaker bar and socket on the crankshaft pulley. If the engine is resistant to moving, or moves slightly and then binds, do not force the engine any further before determining the problem. </li></ol> <p> <br /> <p> <br /> <a>Engine stalls immediately when started </a> <ol> <li>Check the ignition switch condition and operation. The electrical contacts in the run position may be worn or damaged. Try restarting the engine with all electrical accessories in the off position. Sometimes turning the key on an off will help in emergency situations, however once the switch has shown signs of failure, it should be replaced as soon as possible. </li> <li>Check for loose, corroded, damaged or shorted wires for the ignition system and repair or replace. </li> <li>Check for manifold vacuum leaks or vacuum hose leakage and repair or replace parts as necessary. </li> <li>Measure the fuel pump delivery volume and pressure. Low fuel pump pressure can also be noticed as a lack of power when accelerating. Make sure the fuel pump lines are not restricted. The fuel pump output is not adjustable and requires fuel pump replacement to repair. </li> <li>Check the engine fuel and ignition management system. Inspect the sensor wiring and electrical connectors. A dirty, loose or damaged sensor or control module wire can simulate a failed component. </li> <li>Check the exhaust system for internal restrictions. </li></ol> <a>Starter motor spins, but does not engage </a> <ol> <li>Check the starter motor for a seized or binding pinion gear. </li> <li>Remove the flywheel inspection plate and check for a damaged ring gear. </li></ol> <a>Engine is difficult to start when cold </a> <ol> <li>Check the battery condition, battery state of charge and starter motor current draw. Replace the battery if marginal and the starter motor if the current draw is beyond specification. </li> <li>Check the battery cable condition. Clean the battery terminals and replace corroded or damaged cables. </li> <li>Check the fuel system for proper operation. A fuel pump with insufficient fuel pressure or clogged injectors should be replaced. </li> <li>Check the engine's tune-up status. Note the tune-up specifications and check for items such as severely worn spark plugs; adjust or replace as needed. On vehicles with manually adjusted valve clearances, check for tight valves and adjust to specification. </li> <li>Check for a failed coolant temperature sensor, and replace if out of specification. </li> <li>heck the operation of the engine management systems for fuel and ignition; repair or replace failed components as necessary. </li></ol> <a>Engine is difficult to start when hot </a> <ol> <li>Check the air filter and air intake system. Replace the air filter if it is dirty or contaminated. Check the fresh air intake system for restrictions or blockage. </li> <li>Check for loose or deteriorated engine grounds and clean, tighten or replace as needed. </li> <li>Check for needed maintenance. Inspect tune-up and service related items such as spark plugs and engine oil condition, and check the operation of the engine fuel and ignition management system. </li></ol>

on Jun 07, 2011 | 2009 Chevrolet Aveo

2 Answers

Loss of power

Get a pressure reading on the fuel pump,it sounds like a classic fuel pump going out. If it idles but cant go much faster than that then I am pretty sure is a fuel pump.

Jan 12, 2013 | 1987 Nissan 300ZX

1 Answer

Will not turn over or even try to turn over. has hot battery and was running fine until parked now will not do anything. also has a different chime alert

Automobiles: 1996 Mercury Sable
Something electrical corroded while it was parked.

connection between battery cable and (lead) battery connector - look for green corrosion of copper wire
cable going from battery to starter motor corroded
corroded ring terminal on starter motor threaded terminal
ignition switch contact corroded at the "start" position
Battery delivers 12 volts, but fails to deliver proper CCA/fails load test
starter motor inoperative
starter solenoid seized/immobile
engine ground wire missing/broken/corroded terminal(s) - frame-to-engine
starter relay failed/corroded terminal(s)
wire from starter relay to starter corroded/missing/corroded terminal(s)

For completeness, here's the Troubleshooting Guide for 1996 Mercury Sable:

Priority Action Part Type Cause
1 Inspect Ignition Switch - Improperly Connected or Faulty Ignition Switch.
2 Inspect Battery - Battery Discharged or Faulty.
3 Inspect Battery Cable - Corroded, Broken, Shorted or Poorly Connected Battery Cable.
4 Inspect Starter Solenoid - Starter Solenoid Faulty.
5 Inspect Starter - Starter Motor Faulty.
6 Inspect Wireset - Worn or Damaged Spark Plug Wires.
7 Inspect Ignition Coil - Faulty Ignition Coil.
8 Inspect Distributor Cap - Loose, Cracked or Worn Distributor Cap.
9 Inspect Spark Plug - Incorrectly Gapped or Fouled Spark Plug(s).
10 Inspect Distributor Rotor - Loose, Cracked or Worn Distributor Rotor.
11 Inspect Fuel Tank - Fuel Tank Empty.
12 Inspect Carburetor - Worn, Faulty or Damaged Carburetor.
13 Inspect Fuel Pump - Faulty Fuel Pump.
14 Inspect Choke - Stuck or Improperly Functioning Choke.
15 Inspect Fuel Filter - Clogged or Dirty Fuel Filter.
16 Inspect Fuel Pump Relay - Faulty Fuel Pump Relay.
17 Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator.
18 Inspect Fuel Pump - Low Fuel Pressure.
19 Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC.
20 Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.

Dec 02, 2011 | 1996 Mercury Sable

2 Answers

My w reg seat ibiza 1.4 cool/s will not start. I have found that the fuel pump is not working, tho i think its ok. There is no power to the pump or the fuse for the pump? Relay maybe?

First off, as soon as your ignition key is turned to on, your fuel pump is activated for 5 seconds. Once it's running, it will have constant power to the fuse. Now, remember that all power in a Volkswagen goes through the ignition switch first. Use a test light and check for power at relay coming from ignition switch. You can also add power to the fuse and see if the relay clicks and the pump is on. You should hear a buzz from the pump. That will isolate the pump from the ignition switch. Ignition switches in these cars are made with plastic housings and metal contacts. Contacts tend to melt in these, hence the fuel pump will not come on. Weak part of Volkswagen has always been the electrical.

Jan 10, 2011 | 1996 Volkswagen GTI

1 Answer

Where is the blower motor resistor in a 2001 dodge caravan se. I do not see it behind the glove box. I do see soemthing similar under the hood on the passenger side aginst the firewall but it is not...

Caravan, Grand Voyager, Town and Country, Voyager, 2000-2004
Blower Motor - Removal & Installation
  1. Disconnect and isolate the negative battery cable, then wait 2 minutes before proceeding with the removal. This will effectively disable the air bag system preventing possible personal injury.
  2. Remove the glove box from the instrument panel.

    Fig. The blower motor is located behind the glovebox, behind the blower motor cover
  3. Remove the A/C-heater blower motor cover.
  4. Disconnect the blower motor wiring connector.
  5. Remove the blower motor wiring grommet and feed the wiring through the blower motor housing.
  6. Remove the blower motor mounting screws.

    Fig. Once the cover is removed, unplug the electrical connector and push it through the opening in the housing


    Fig. The blower motor is secured to the housing with three small screws
  7. Allow the blower motor assembly to drop downward to clear the instrument panel and remove from vehicle.
To install:
  1. Place the blower motor assembly into position on the A/C-heater unit and tighten the mounting screws.
  2. Route the blower motor wiring through the blower motor housing and seat the wiring grommet in the hole of the blower motor housing.
  3. Reconnect the blower motor electrical connector.
  4. Install the A/C-heater blower motor cover.
  5. Install the glove box into the instrument panel.
  6. Reconnect the negative battery cable. Check blower motor operation.

Auxiliary Heater and Air Conditioner
Blower Motor - Removal & Installation
  1. Disconnect and isolate the negative battery cable.
  2. Remove the right quarter trim panel as follows:
    1. Remove first rear seat. Remove the second rear seat, if equipped.
    2. Remove the sliding door sill plate.
    3. Remove the quarter trim bolster.
    4. Remove the upper C-pillar trim and D-pillar trim panel.
    5. Remove the first and second rear seat belt anchors.
    6. Remove the screws securing the quarter trim to quarter panel from the bolster area.
    7. Remove the screws securing the rear edge of the quarter trim to the support bracket.
    8. Carefully disengage the hidden clips securing the front of the quarter trim to the quarter panel just rearward of the sliding door opening.

      Fig. Removing the trim panel to access the rear blower motor
    9. Disconnect the wiring harness connector from the accessory power outlet, if equipped.
    10. On long wheelbase wagons only, remove the quarter trim from the quarter panel and pull second rear seat belt through access hole.
    11. Pull first rear seat belt through the access hole.
    12. Remove the quarter trim panel from the vehicle.
  3. Remove the 5 screws mounting the A/C-heater blower motor housing to the rear HVAC unit (one mounting screw located on evaporator cover).
  4. Twist the blower motor out of scroll housing.
  5. Disconnect the blower motor wiring connector.
  6. Remove the blower motor from vehicle.

    Fig. The rear blower motor is held in place by four screws
To install:
  1. Install the blower motor unit into the vehicle.
  2. Reconnect the blower motor wiring connector.
  3. Secure the blower motor into scroll housing.
  4. Install and tighten the 5 screws mounting the A/C-heater blower motor housing to the rear HVAC unit (one mounting screw located on evaporator cover).
  5. Install the right quarter trim panel as follows:
    1. Install the quarter trim panel in position in the vehicle.
    2. Insert and pull the first rear seat belt through the access hole in quarter trim panel.
    3. On long wheelbase wagons only, insert and pull the second rear seat belt through access hole in quarter trim panel.
    4. Reconnect the wiring harness connector to the accessory power outlet, if equipped.
    5. Engage the hidden clips to secure the front of quarter trim to quarter panel rearward of sliding door opening.
    6. Install the retaining screws that secure the rear edge of quarter trim to support bracket.
    7. Install the retaining screws that secure the quarter trim to the quarter panel in bolster area.
    8. Install the second rear seat belt anchor (if equipped), and the first rear seat belt anchor.
    9. Install the D-pillar trim panel and upper C-pillar trim.
    10. Install the quarter trim bolster.
    11. Install the sliding door sill plate.
    12. Install the second rear seat, if equipped, and install the first rear seat.
  6. Reconnect the negative battery cable. Check blower motor operation.

Hope helps (remember rated this).

Jul 11, 2010 | 2001 Dodge Grand Caravan

2 Answers

96 chev 1500 no power to fuel pump. changed the

possibly fuse or could be oil pressure swich

Jun 17, 2010 | 1996 Chevrolet C1500

1 Answer

I have a 1996 izuzu rodeo, when i let the car sit over night i go to turn the car on and i get no 3 second prime out of the fuel pump, if i throw a spray of eather in her, it will start right up, and will...

Try and turn the ignition over ,and over,then stop,then try and start it,if it starts,then the fuel pump is loosing it`s prime,check the fuel pressure regulator.

Jan 26, 2010 | 1996 Isuzu Rodeo

1 Answer

Won't start

you may need to check to see if your fuel pump is connected properly,or if it works.turn the key just befor starting you should hear a slight hum if you don't that may be it

Jun 15, 2009 | 1990 Isuzu Pickup

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