Cold start issues

[SMOKEDYA]

On my 93 5.0 when its cold and i start it it dosent want to idol at all unless i give it gas? Once it's been going for a bit then it's fine. Any ideas? peace







john

 

[fastford91]

could be an intake leak!! my exploder did this in the winter when it was cold! wouldn't run unless you held the gas down a bit and would run fine once it warmed up! took it to my cousins garage he did a test on it and turned out to be a leaking intake gasket! that's all i can come up with! I'm sure others will have more ideas! good luck! James

 

[SMOKEDYA]

Do you remember what the test was called? Or what he did to test it? I've heard of using a can of either to spray and it would rev where the leak is? BTW it's just not when it's cold like winter cold, but when the engine is cold. Thanks. peace





john

 

[fastford91]

yes you can do it that way Ive heard of this! i think he used the same test ford does! with some kind of die or smoke and black light or something like that!I'm not sure! all i know is my truck did the same thing your describing and that's what the problem was! James

 

[HISSIN50]

Have you confirmed that your IAC is clean and functional?

Good luck.

 

[84streetstang]

That test is just called a smoke test, and dont use eather use just plain ole carb cleaner, and shoot all the vaccum lines one at a time until it idles down, but he is right check your IAC first

 

[corvetteguy]

Take Out and CLEAN YOUR MAF

 

[jrichker]

See the "Surging Idle Checklist for help with all your idle/stall problems. The first two posts contain all the updates to the fixes. I continue to update it as more people post fixes or ask questions.