Question about Nissan Minivan

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I have a 92 model nissan largo ld 20 diesel engine 4 cyl i have replaced glow plugs but when i put battery on it blew my relay wire near the battery and the plugs are 2xcp70 and 2x cp 71 is there a order they go in beause the way i got told was the cp 71 at the rear and the cp 70 at the front?

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In a 4 cylinder diesel 2x cp 70 in front cp71 in the rear the reason why inline fuse blew cause by an electrical fault in the alternator thanks heaps after the alternator was replaced it work

Posted on Jul 17, 2008

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Why the diesel pump nissan hardbody is not getting the power


DIESELS DO NOT START FOR ONLY 3 REASONS.. 1. not getting fuel. 2. Glow plugs not working.. 3 major engine damage
1. air in system.. like you ran out of fuel, Fuel filter clogged, lift pump not working, no fuel in tank, Bad fuel. .. 2. glow plugs..check the wire at the glow plug to see if it has power. If it does not check the relay and fuse. glow plugs usually do not all go bad at one time. 3. major engine damage.. you would normally notice this by the noise the engine makes or it would not turn over..

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Hiace starting problems


Is the battery in a good condition, it a diesel engine? If so the glow plugs would be the first point of call. Check for power at the glow plug main wire feed, if you have power there then a wiring fault can be ruled out. If not check your glow plug relay and associated wiring. If you have power, I think from memory its only 11 volts, remove the power balance rod that runs across the top of your glow plugs. Then remove the glow plugs and connect them across a battery hold the threaded body of the glow plugs and the negitive terminal and use a piece of wire to connect the small fine threaded end to the positive terminal on the battery. The glow plug should glow a hot bright red within a few seconds of being connected. If it doesnt it is faulty. 1 faulty glow plug puts strain on the other glow plugs. Id replace all 4 if any are faulty. I hope this helps.
tyl

Mar 18, 2014 | Toyota Cars & Trucks

1 Answer

Truck wont start, but only if you hear a click


I copied this from my GM service manual for 1982 6.2 diesel.

1. If the glow plug relay is not clicking on and off then turn the ignition to the RUN position and connect a 12V test light to ground and touch the pink/black wire in the glow plug relay connector.

2. If the light is off repair the open cicuit in the pink/black wire to the splice.If the light is on then touch the light blue at the glow plug relay connector.

3. If the light is off replace the glow plug relay. If the light is on, disconnect the connection at the thermal controller and touch the black wire in the connector.

4. If the light is off, repair the open circuit in the light blue wire from the thermal controller to the glow plug relay. If the light is on repair open circuit in black wire back to a splice. If no trouble is found replace the controller.



You should also get your hands on this Haynes book. Diesel Engine Repair Manual, part # 10330. Excellent coverage on the 6.2 and 6.5. In it, they say that early 82\'s have a hole at the number 2 hole on the pin connector of the wire harness for the thermal controller. this allows dirt in there and corrodes the pins. Remove the connector and clean thoroughly the pin area on the connection and controller. Seal the hole with some silicone. If things are still acting up, replace the wire harness connector.



Hope some of this helps.

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1 Answer

Starting issue, I have a 1993 ford f250 7.3l pre powerstroke. I started the motor and it stalled out like there was a short, now when i turn the key my glow plugs do not fire and wait to start doesnt show...


On some Models the glow plug Relay does not have an integrated Power Relay. This means there is a second Relay before the glow plug Relay that feeds it power.

You should check the wires running to the glow plug Relay for power with the key ON. Check some other wires off of the Ignition switch to make sure your 20 year old Ignition switch is good.

There are some sites which show vehicle wiring. Autozone has a free section after Registering your vehicle but it takes a little sorting through the Help section. There should be a fuse to protect the above Relays.

Make sure you find the Diesel-equipped wiring circuit. Diesel ignitions are different from gas units.

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Expert van 2lhdi 2005 very poor starting in cold weather had glow plugs and relay fitted still no better. i only do 3000 a year and mainly short jouneys less the 5 miles. new battery last year. it does...


Firstly fit a manual overide to the heater plugs .relay -push button type switch -wire -connectors ,run a wire direct from battery to relay ,other side to heater plug relay output so it feeds all the heaters ,push button inside cab with a 12v feed from ignition switch running to relay then other side of relay to earth ,leave vehicle on charge often on trickle charge where possible ,also on a full tank of diesel put in a litre of petrol to stop diesel waxing up ,nice old rug or blanket over engine and it will first time every time ,only use the petrol when weather below minus 5c though ,great vehicles these peugeots but i do like my ford transit

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Intermittent battery dead.


This is not an easy repair. The system has a short or draw on the battery that could be located anywhere. I would take to a good local mechanic. The time involved could be very high in excess of 4 hours just to find the problem.
So taking to a shop you can trust can save you a lot of time. I know auto zone does some basic test to check the charging system. The alternator and starting system to see if there is correct out put on the alternator and if there is a draw on the starter for free. I guess that would be a good place to start.

Good luck

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1. check your battery.
2. check your connection to the starter
3. check your ignition key.
4. check your relay, etc

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I would like to check the presure on 2007 F350 6.0 heui pump. how can i go about it. l'll be using a presure gauge, but i don't know where to install it, also where is the heui pump located? i would also...


glow plug relay should be on the front are rear of intake.you have a mechanical low pressure pump on the passenger side low near the front. or a electric low pressure pump on the starter side. your truck should have the low pressure electric pump. to check fuel pressure you disconnect the out let line to do a out put test.on the electric low pressure pump.put out let line in a container.crank engine for 20 to 30 sec.you should have a good flow of fuel no dribbles.if dribble replace low pressure electric pump.the mechanical low pressure pump out put test you disconnect fuel line from the fuel filter inlet line.disconnect wire at fuel injection pump electric shut off solenoid .place the fuel line in a container. crank engine for 20 sec. fuel flow looks good.pump is good .if dribbles.replace mechanical low pressure pump.to check glow plug relay you need a .diesel repair ford manual to show you where to put a test light to check the relay.WEAR SAFETY GLASSES WHEN WORKING ON DIESEL ENGINES.DONT DISCONNECT THE INJECTION PUMP LINES WHILE ENGINES IS RUNNING.THE FUEL PRESSURE IS SO HIGH SPRAY IN YOUR EYE CAN CAUSE BLINDNESS.GET IN SKIN OR SORE CAUSE BLOOD POISON. CAN ALSO CAUSE A FIRE BE VERY CAREFUL.

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