I have a 95 GMC safari van 2wd 4.3 v6 auto with 145,000 miles. When I drove over 120 miles or so the van would not idle when I stopped it would even die. Gradually the van started running bad all the time. I have replaced the spark plugs, rotor, cap, air temp sensor, coolant temp sensor, oxygen sensor, removed the catalatyc converter then I replaced the EGR valve. The check engine light told me to replace the EGR valve. After replacing the valve the engine won't idle and runs bad. I removed the new valve and checked to see if it was plugged and it was not. The check engine light gave the code to replace the valve again. I check the voltage on the wires and that is correct. It acts like the valve stays open all the time. I searched for a blown fuse and could not find any but I might not have found all the fuses I need to check.
Thursday, July 19th, 2007 AT 1:51 PM