Electrical issues on Navara

Check glove box light is going out if it has one.

Ron..was it raining that night or did you just wash it? Have had headlight and other relays stick on from water and then drop back out after they dry out leaving nothing to indicate later that they were draining the battery!

Thats about all I can think of, unless there is a stray ashtray or glovebox light that was on and you didnt notice??

Goodluck with it!

Matt.

I don't know about anybody else, but give me a electrical gremlin over a head gasket failure any day, thankyou!

Hi,

Many thanks all for your helpful posts, however still none the wiser, no ashtray light, no glovebox light, battery seems to be A1.

I did have a mega pulse on it, and just bout 2 days ago shifted it to another vehicle, but the way it charged up so quickly, would, and to full capacity, verified by SG, suggest battery is in very good health. Also tonight after work and sitting all day with just that brief run to work, fired up as usual on first compression stroke.

The head gasket bit..... guess its just what you know!! I dont know electrics in depth.

Thanks again for all replies, each and everyone appreciated, great forum,

Any further hints appreciated too

guess I'll just have to see if it happens again and then try trace it then by pulling fuses etc.

Rgds

Ron

Hi, are you sure the battery was flat and it is not a dirty terminal.
Did you check the voltage in the morning?
Will

Looks like it is back to basics.
How old is the battery?
May read full volts but can't give out full load?
Checked earths and connections at the starter motor?
What are the connectons like on the battery? Good enough for 150 plus amps?
Maybe can't get full current to the starter motor for when the engine is cold and hard to start? But OK when engine warm.
If draining 5 amps when everything is off, that could be 60 amp/hours over a 12 hour night, or more than half the battery capacity. Seems a bit high.
1999 model the starter motor should be OK. Have only had starter motor problems after 15 to 20 years on the car.

Annoying arn't they. Just been through a similar problem on mine with starting problems. I had a bad connection at the end of a wire. Passed the voltage but not the ampage.
Friend had a similar problem to yours and it was the battery. Battery read 12.8v for about 3 secs, and the dash lights came on, but it wouldn't even clutch start. Not enough voltage after 30 secs to power up the engine computer.

Dud cell in the battery ,get it load tested and you will see it bubble

Fit a new one before it lets you down

unless the sg for each cell was exactly the same ,still look for the one that is down compaired to the others, switch on head lights,spotlights any thing to load battery start engine,cold best ,check cell that is down for bubbles ,thats the dud.also check standing battery votage anything under around 12.2 V is weak

rgds Grant

Hello All,

Well pleased to say problem solved eventually, and I wouldnt have believed it if I hadnt seen it myself!

I eventually bought a load tester, not a big expense (85.00) considering my outdoor pursuits and number of batteries etc.

I got the Matsons 100amp tester, which applies a full load for 10 secs plus tests charging circuit etc. real good bit of gear and will be used lots in my tool shed.

Anyway, cut a long story short, a few of you were onto it, .... battery connections!!

Battery was passing load test 100%, charging fine etc. One morning did the flat thing, jumped ok, and on removing jump lead it pulled positive connection off! yet it looked soooo secure.

Went to local auto elec, he fitted marine connections and posts, for a modest sum, and never had trouble since... at least now I can load test a battery to check for all out grunt too!!

So if anyone has troubles in this area..... DONT underestimate how tight connections need to be, as if not, they build up resistance which induces heat and more resistance, then it produces a coating on terminal which further impedes resistance, if your connections are iffy get them redone at a good auto elec.... cost less than $30 and worth every buck!!

Thanks for all responses and I hope this post helps others,

Rgds

Ron