woodwright

I have a 2000 Silverado with a 5.3. The last 3 mornings its been down to 0 degrees and my truck wont start. it cranks but wont fire. Later in the day when it warms up it'll start and run fine. I can hear the fuel pump kicking on, and theres pressure in the rail. I gave it a blast of starting fluid and it doesn't even hickup. I don't have a scanner. I'll take it down and have it scanned if it starts this afternoon. Any ideas?

wretched73

iTrader: (1)

Well, if you have fuel and compression, you must be missing spark.

woodwright

Right. But whats spark related that could be affected by cold?

TXsilverado

iTrader: (19)

factory tune or aftermarket? add more cranking fuel at 0* temp?

03sierraslt

iTrader: (22)

woodwright

stock tune. I tried cracking the throttle a bit. nothing happened. This afternoon it warmed up to 25 degrees and it started right up like nothing was wrong. I ran it down and had it scannd and it had no relevant codes.

arthursc2

iTrader: (5)

MikeGyver

iTrader: (5)

I think that spraying the ether and getting nothing would be a good argument against a lean condition.

MikeGyver

iTrader: (5)

Unless he was too stingy with the ether

woodwright

Could it be the VATS acting up?