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Alright, so Ive got a '98 expedition with the 5.4l and yesterday I went to start it and it would not start. It starts to turn the engine then just sits. The motor is engaged until I stop turning the key. The battery is reading 11.8V at the posts and 11.8 on the terminals so connection at the battery is good. I have yet to go underneath.
There is no clicking of the solenoid. This has happened once before when it was real cold out, i waited until the next morning when it was wamrer and started right up.
My guess is the starter no longer has the ***** to turn over the very cold engine.
Hopefully I will be able to throw it up on the lift tonight and take a look.
Is the battery reading that 11.8 volts just sitting there or when you're trying to start it?
just with it sitting there, i was alone, so i couldnt tyr starting with the multimeter on it. (my guess is it would dip pretty low when trying to crank, because the starter is def engaging, and the lights dim when i try to start it)
Just got it towed to the shop, so I will take a look at it tomorrow.
any common problems to look for besides corrosion?
True, but being a 98 I'm figuring it's at the end of it's second battery's life cycle. Plus he only has 11.8 volts on it. A fully charged and good battery has slightly more than 12. That why I'm figuring it's either not being properly charged, or it has a dead cell in it. But I've been wrong before. LOL
True, but being a 98 I'm figuring it's at the end of it's second battery's life cycle. Plus he only has 11.8 volts on it. A fully charged and good battery has slightly more than 12. That why I'm figuring it's either not being properly charged, or it has a dead cell in it. But I've been wrong before. LOL
new battery last fall (everstart max or whatev) the battery is 11.8 because I have tried cranking it several times without it starting, but that is def close enough to 12 to pretty much rule out the battery. Last time I had a bad battery It would charge up to just over 12, and i could watch the voltage drop on the multimeter.
My money is on the starter motor. Gunna hit the shop after classes today to do some troubleshooting . I will be looking for corrosion and bad cables/connections.
how much of a PITA is it to run a new battery cable? I feel like it is all tucked nicely into the wiring harness.
So as I predicted, leaving it in the warm shp over night let it start right up. This is tricky now because it is hard to troubleshoot a problem I don't have.
Anyway, I was going down to clean the terminals on the starter (cables were good and there was plenty of voltage at the can) and when I was loosening one of the terminals, the solenoid started to rotate in the can, I said screw it and bought a new starter.
The engine spins so much quicker with the new motor, I don't doubt that was the problem. Just need to wait for it to get real cold to really find out.
temperature would have zero effect on the starter motor. It WILL however have a huge effect on the battery. Batteries are not very efficient when they are cold, which is why a lot of diesels these days have warming blankets on their batteries for cold weather starting. My guess is you may have had a starter on the way out, but I'd still put money on a weak battery.
temperature would have zero effect on the starter motor. It WILL however have a huge effect on the battery. Batteries are not very efficient when they are cold, which is why a lot of diesels these days have warming blankets on their batteries for cold weather starting. My guess is you may have had a starter on the way out, but I'd still put money on a weak battery.
Everyone keeps saying that, however, engines get tighter when cold, thus needing more power to turn them. It is possible that the motor can spin a loose, warm engine fine, but when it gets cold, the engine gets tight and the motor just doesnt have the *****.
also, doesnt look like there are any real cold days coming up, so the problem may not come back until next winter...