suprared89
Registered User
Guys,
I have posted about this before. I really need help. I will post everything i can about the car. I really need some expert help here.
It is a 95 sc auto. The problem is a rough idle mostly in gear. I have no codes. I have replaced motor mounts, egr valve, oxygen sensors, cam sensor, cleaned the maf sensor. My fuel pressure is approx. 36lbs at idle with regulator connected. I have replaced the fuel filter, spark plugs, wires, and even swapped out the coil. Fuel pressure increases accordingly with acceleration. I have gone over all the vaccuum leak possibilities with carb cleaner. Meaning all vaccuum lines and intercooler conections. I have even gone so far as to try seafoam 2-3 times. I thought it might have been carbon build up on one of the valves. I have run cylinder balance test and passed. I have tried fuel system cleaners. The only thing I notice that is out of the ordinary is that my temp gauge will read a little cool at times. It gets to th N in Normal. The car seems to be running rich. I drive approx. 50 miles a day, and have to fill up every 3 days. When I pulled the plugs I noticed the 3 on the drivers side seemed to be black(rich). That led me to replace the oxygen sensors. The odd part is that it was only the 3 on the drivers side. The others had normal color. The car runs well and has good performance while driving and seems to have plenty of power. The vac gauge shows approx. 18 at idle in park, goes to approx. 12-15 in gear.
I am desperate PLEASE HELP!!!!
I have posted about this before. I really need help. I will post everything i can about the car. I really need some expert help here.
It is a 95 sc auto. The problem is a rough idle mostly in gear. I have no codes. I have replaced motor mounts, egr valve, oxygen sensors, cam sensor, cleaned the maf sensor. My fuel pressure is approx. 36lbs at idle with regulator connected. I have replaced the fuel filter, spark plugs, wires, and even swapped out the coil. Fuel pressure increases accordingly with acceleration. I have gone over all the vaccuum leak possibilities with carb cleaner. Meaning all vaccuum lines and intercooler conections. I have even gone so far as to try seafoam 2-3 times. I thought it might have been carbon build up on one of the valves. I have run cylinder balance test and passed. I have tried fuel system cleaners. The only thing I notice that is out of the ordinary is that my temp gauge will read a little cool at times. It gets to th N in Normal. The car seems to be running rich. I drive approx. 50 miles a day, and have to fill up every 3 days. When I pulled the plugs I noticed the 3 on the drivers side seemed to be black(rich). That led me to replace the oxygen sensors. The odd part is that it was only the 3 on the drivers side. The others had normal color. The car runs well and has good performance while driving and seems to have plenty of power. The vac gauge shows approx. 18 at idle in park, goes to approx. 12-15 in gear.
I am desperate PLEASE HELP!!!!