Help! Car won't start without pressing gas

[SHUGAAH]

Hello everyone, my 04' Grand Prix has trouble starting sometimes. Usually I have to press the gas in order to get the engine to start. After that it runs like a champ! But if the car is sitting over night it starts normal (without pressing gas) But it's very annoying and I know it's not supposed to do that. I'd like to know some of the possible reasons it may be doing that. I also have a engine light on for a bad thermostat and was told it may be related but I'm not sure how. Any help with understanding my starting problem would be great help, Thank you.

 

[Confusingboat]

Mine used to have that same problem. Clean your MAF and throttle body and it'll start without so much as a hiccup.

 

[dsmuts]

Yep clean your tb and all will be well.

 

[SHUGAAH]

Okay thanks how should I clean my/what should I use to clean the MAF and throttle body?

 

[dsmuts]

brake clean on tb. Electrial parts cleaner or maf cleaner on the maf sensor.

 

[SHUGAAH]

Okay thank you, I just want my car to start normal again

 

[SHUGAAH]

For the throttle body, should I just clean the boar or should I clean whatever is in the electronic control modual attached to it?

 

[Fivefingerdeathpunch]

Unbolt the whole thing, should be like 3-4 bolts. You want to clean the throttle body blade and the whole bore, it will be all nasty and black.

 

[Confusingboat]

Unbolt the whole thing, should be like 3-4 bolts. You want to clean the throttle body blade and the whole bore, it will be all nasty and black.

This.

 

[nik12937]

Don't be afraid if a little coolant comes out, it won't be much if any, but there is a coolant passage that goes through the throttle body. Check the gasket while you have it off.