I have the above mention truck and I am not sure what is exactly wrong with it. It's hard to start(have to press pedal down to get it to start), rough idle when stopped, oil pressure drops to near zero when the rough idle starts, has black carbon and smoke coming from the tailpipe on start up and 3/4 throttle and it is using ALOT of fuel(only getting around 10 mpg).I replaced all of the ignition parts, pcv and the fuel filter. Getting a trouble code 45 (rich mixture).I was leaning toward the fuel pressure regulator because of a question someone else asked with a similar problem for the same vehicle but today I noticed someone in the forum with a 1992 blazer with a somewhat similar problem found out it was the computer. What do you all think it may be?
have the same problem?
Tuesday, August 8th, 2006 AT 10:10 AM