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Electrical Problems???

Tech Talk for Rover owners.

Moderator: Micka

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Posts: 14
Joined: Wed Apr 21, 2004 11:55 am
Location: Gold Coast

Electrical Problems???

Post by ragin rover »

Hey ya,
Having problem with my Rangie, drove to work it was fine. When I finished work, wouldnt start at all.
Its not the battery, its not the alt, its not the starter motor, ... it has to be one of these million bloody wires every where.

Can you please give me advice, where else can I look for?

Give me heaps of idea where to look, or what to try, I do anything to get that rangie going.. also to keep me busy :P

cheers
Mark
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Joined: Mon Dec 16, 2002 4:24 pm
Location: Neither here nor there

Post by TuffRR »

Try the white wire with green stripes........


Focked if i know, we're gonna need a bit more information than that!

Have you checked your blinker fluid?
Range Rover - 4.4 V8, MD Crawler Box, F&R Lockers, 35" Centipedes, 4" lift. Overqualified WebWheeler!!!

Discovery - Bling touring stuff!
Posts: 14
Joined: Wed Apr 21, 2004 11:55 am
Location: Gold Coast

Post by ragin rover »

What more information would you like???

One thing i forgot to say, is that my radio no longer works???

Its farked? Lol...

Will try that advice...

Cheers
Mark.
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Joined: Mon Mar 31, 2003 10:05 am
Location: Brisbane or 169.254.243.241

Post by RaginRover »

points ?

What year? What Engine ?

Tom
Posts: 625
Joined: Fri Feb 20, 2004 12:04 am
Location: Melbourne

Post by Woop »

Starter motor relay possibly? Small relay on left hand side of the firewall which in turn operates the starter motor solenoid.. Check wiring to this relay and also might be a faulty 'Prince of Darkness' ignition switch...

Nick
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Joined: Wed Apr 21, 2004 11:55 am
Location: Gold Coast

Post by ragin rover »

More info . 3.5lt 1986 model.

Thanks nick, will have a look into that..

Will let ya all know what the problem is.

Keep bringing in more suggestion.

Cheers
Mark.
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Joined: Sun Nov 03, 2002 2:35 pm
Location: Captain Creek QLD

Post by Bush65 »

Is the starter spinning the engine over at the normal starting speed?
John
Posts: 14
Joined: Wed Apr 21, 2004 11:55 am
Location: Gold Coast

Post by ragin rover »

hi John,

No its not....

Mark.
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Location: Vic

Post by Rovernaut »

Not familiar with the rangie, But ,Does it have a crash cut out gizmo like the Discovery?. These are Behind the washer bottle.on the firewall in a Disco. They cut the ignition system. You reset these by pressing the rubber top to reactivate the button.
Posts: 14
Joined: Wed Apr 21, 2004 11:55 am
Location: Gold Coast

Post by ragin rover »

Same here, I dont know much about my rangie yet, only had for a year now.. lol..

Will have a look at it first thing in the morning..

Thanks..
Mark
Posts: 1559
Joined: Sun Nov 03, 2002 2:35 pm
Location: Captain Creek QLD

Post by Bush65 »

ragin rover wrote:hi John,

No its not....

Mark.


Can you hear the starter solenoid click in when you try to start it?

How good is your batteries charge? Turn the headlights on - they should be bright and remain bright when you hold the ignition key in the start position.

The starter motor has a solenoid mounted on top of it.

The solenoid has 2 large terminals with hexagon nuts on them and 2 terminals with push on connections.

The 2 large terminals are power for the starter motor. A heavy cable from the battery runs to the outer terminal. A short cable runs from the inner terminal to the starter motor. When the solenoid is energised (by turning the ignition switch to start position) an electromagnet closes the contact inside the solenoid to connect the 2 large terminals together (so battery power gets to the motor).

If the starter motor is ok it should spin if you touch a jumper lead from the battery + terminal to the inner terminal.

The larger of the other 2 spade type terminal is where the power is supplied to the solenoid (to energise the solenoid and close the contact) brown wire with red stripe. The small spade terminal has a white wire with purple stripe that runs to the ignition coil.

If the solenoid is ok, the starter motor should spin if you touch a jumper lead from the battery + terminal to the larger spade terminal. When you do this, if you hear the solenoid click in, but starter motor does not spin, the contacts inside the solenoid are faulty - usually high resistance from corrosion of copper contacts which can often be cleaned with a file if you pull it apart.

The brown wire with red stripe (that energises the solenoid) comes from the starter relay - on early rangies the relay (unpainted metal cover) is in the engine bay, on the firewall, to the left of the engine. There are 4 terminals on the relay. A black wire to earth, a white with red stripe from the ignition switch. A brown that is power from the battery terminal on the starter solenoid and a large brown wire with a red stripe that runs from the relay to energise the starter solenoid (spade connector). Later models than my 84 may be a little different.

Check the connections on the starter relay. Sometimes the wired dont have a good electrical contact on the spade terminals - often pull them off and refit will fix this.

With a multi-meter you should be able to measure voltage at the white/red and brown/red terminals of the starter relay when key is switched to start. The smaller brown wire from the battery terminal on the starter solenoid should have power all the time (while battery is connected).

Good luck.
John
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