I have en old 1992 Ford Tempo that until recently used to work

Failing sensor. Good luck.

>>17843824
Thank you.

>>17843823
Define not starting. Is it turning over or completely dead?
A car needs spark, fuel and air to run. Narrow it down and find out what is missing.

>>17843977
It does crank but it won't start.

After I leave it to cool down for 4 hours or so, it starts again.

>>17843999
Something is fucked with the fuel injection.

>>17844004
So a sensor does sound reasonable?

>>17843999
Is it carbed or fuel injected? Again, you need to check fuel or spark to find out what is missing. Throwing parts at a car is the retard's approach to auto mechanics.

>>17844024
It has fuel injectors.

The problem is that it only does this sometimes and usually when I'm not at home

>>17844032
Making excuses won't fix your car anon. You have to reproduce the symptoms and find the problem. Check spark first as that's the easiest. If spark is good get yourself a fuel pressure gauge and check fuel pressure.

>>17844052
You're right, excuses won't help me. But reproducing the symptoms when I need them seems to be the biggest problem for me.

After that I can start looking how to fix it. Unless it's an electronic problem, that seems more complicated.

It's the ignition module. Located by the distributor. A common problem. Get it at Autozone. If you don't have a Ford ignition module tool, buy one , it's also at Autozone. Fairly cheap. Use dielectric grease when replacing it.

>>17844088
Intermittent problems can be a pain in the ass. A 1992 won't have that much electronics to worry about. Test all the things you can test easily with basic equipment first and eliminate them before moving up to more difficult things.

>>17844137
I will try, I'm not an expert by any means.

>>17844133
It could be, but wouldn't it fail all the time?

>>17844184
It's the Ford TFI problem. Google it if you want. It fails when hot. That's why it's intermittent. I'm a mechanic, have seen this many times.

>>17844253
I will definitely check it.

The funny thing is I just went outside and the car wouldn't start. Last time I drove it was 3 hours ago so it had time to cool down.

>>17844282
It'll only be intermittent for a while before failing completely. You can probably find YouTube videos to guide you. If you can do basic mechanic stuff, you can do this yourself.

>>17844323
If it fails completely it will probably be easier to diagnose, because at this
points it's really troublesome.

I don't think I can find an exact video for a Ford Tempo, but maybe for another Ford. I will definitely try doing it myself but I need to test it somehow first.

Had literally the exact same problem with a '93 cavalier. Drove me fucking crazy. Turns out it was a plugged catalytic converter. Look into that before anything else OP

>>17844392
I will check that too.

Sounds like the crankshaft position sensor