Engine Performance problem
1998 Pontiac Sunfire 4 cyl Two Wheel Drive Automatic 129000 miles
Hi I hope you can help me. I have a 98 Sunfire SE with 2.4L dual overhead cam engine. I have had it for a year and it has run well with no problems. First, the check engine light came on. We did spark plugs, checked EGR, checked fuel getting to rails and injectors. All were fine. Then the battery started to drag. Replaced that and as we were test driving it, it died on the road. When started up again, the engine cavitated tremendously. Had it checked by a mechanic who said it jumped time. I bought new timing chain, gears and gaskets. Now he says he can't get it timed right. He is lining up both top cams with bolts as well as the bottom one. He thinks its a sensor now. Are there timing marks on the timing chain itself? What are we missing? We put the diagonostic machine on it and its coming up with a code of PO 300. Also, the ETS light will not shut off with the button any longer. All of these things were working before the original check engine light came on.
Thursday, September 30th, 2010 AT 1:01 AM