I have a 1995 Chevy suburban, it won't start in the mornings but it does at the middle of the day...?

Question

I have the starter, the alternator and the battery checked and they all work. There is not a "check the engine light" so I don't not what else to do?

Answer 1

What is different in your area of the world in the morning than in the afternoon? Is it substantially cooler? Is the humidity higher? It could be a weak spot in the ignition system. If morning dew levels are high in your area, it may cause a short that goes away as the air gets dryer.

There are two ways to check this. One is to spray "wire dryer" spray on the ignition wires when it won't start. If after spraying the wires the engine starts, you now know it is moisture.

The other way is to start the engine when it does start and spray a mist of water from a spray bottle on the wire and see if the engine starts to run rough or if it stops.

If this works you need to get the ignition wires replaced, or the distributor cap or the coil whatever is leaking electricity when it is damp.

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Answer 2

You need to change the spark plugs or check the choke system. Bad plugs will cause the vehicle to act very strange and not start when it is cold to cool outside.

Answer 3

you need to take it in and have a shop check it out,it could be a bad set of plugs and wires on it,a good repair shop will be able to help find out whats causing this to happen to it,that's probably the only way you will find out,without spending a lot of money on things you don't need for it,good luck with it hope this helps.