99 chevy tahoe, 5.7 engine wont start,has good spark, smells of excess fuel after cranking for short time?
Country: United StatesMake: ChevroletModel: Tahoe LSYear: 1999Engine: 5.7
TESTED SPARK ON 1ST PLUG WIRE LEFT BANK
Hello and welcome to Just Answer! I will do my best to help you fix your automotive problem today. Does it have alot of miles on it? If it has fuel and it has spark, I think the next check you should do is compression. I wonder if the timing chain has jumped time.
more info, the engine started fine last saturday, drove to station, filled up with gas, drove home no problem. went out sunday,all it would do is crank no start, did the same thing about a week before also. tried today, engine cranks, no start has 245000 miles?
Ok lets start over you are sure it has good spark but are you sure it is getting fuel?
have not tested fuel system, does have smell of raw fuel at exhaust, fuel filter was replaced this past spring
Crank on it then pull a spark plug and see if it has fuel on it. That will tell you if your getting fuel but it does sound like you are.
I have had the crankshaft position sensor cause similar concerns. Since you have had this problem come and go it could be your problem. Chevy has issued a TSB for the sensor here is a copy of it.
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 00-06-04-014
Date: April, 2000
Parts are currently available from GMSPO.
For vehicles repaired under warranty, use the table.
certified mechanic for 15 years