Technical Tips > Post 84

1984 Won't Start

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bfit:
Hi

I don't know anything about the  C4 except for suspension.
first
what the history of the vehicle before  this problem

I'm just thinking what is your earth like.
a hot joint somewhere or a cable off can cause all sorts of issues.

I'd check that  earth and positive cabling  first as you have eliminated the battery.

Then I would  hot wire the engine and by pass all the factory gear and get it running
then work backwards  from the engine  to find the fault

IS there any fuse-able links in the system

just in case of unexpected movement of the car.  put the back up on blocks so it can't drive
when the engine starts with the safety systems by passed

Bfit

Lefty:
Another dumb question
Is there akill switch?
Cheers
Lefty

sabre:

--- Quote from: maikairu on November 17, 2014, 08:15:44 AM ---Battery is good. Have two and a charger.

Tried it in the start position and no luck. 

Power is going to the starter as far as I've determined.

Starter also works.

--- End quote ---
Since dash is lighting with ignition on power to ignition switch is good.
In later models (85 on) starter power goes through VATS (security system) then transmission switch (auto) or clutch switch (manual) then direct to the small wire on the starter and the fuse (labeled starter but actually cold start injector). I believe the '84 did not use VATS but had a theft system inherited from the C3 but the remainder of the circuit should be the same.
The power to the starter does not go through the fuse but the fact that it is not hot when in the start position tells me that the power is not going to the starter (small terminal).
If it is an auto, does your hatch release from the centre console work? If so your transmission (park or neutral) switch is OK, if not it is probably the problem. This not relevant if a manual. For manual check power at each side of the clutch switch (under dash mounted behind clutch pedal).
Good luck.

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