Engine Performance problem
2000 Chevy Blazer 6 cyl Four Wheel Drive Automatic 162000 miles
I have a 2000 Blazer with 162000 miles. Three years ago I replaced the fuel pump. That lasted two years. I bought another guaranteed for life fuel pump on EBay. Right after I put it in the Blazer would start fine but turning a corner it would act like it wanted to stall. If you went into passing gear it would rev but not go any faster. Then I got the check engine light. I had a scan run and it said two things. Fuel pump not delivering enough fuel and O2 sensor port 1. So I replaced the sensor. Same problem. Then it started to take three to four times to start. So I bought a new Delphi fuel pump made for my Blazer. When I took the old pump out I found that wires had come apart and parts were in the fuel tank. So I had the tank cleaned out. I put the new Delphi in. Starts the first time. I no longer have the problem of it wanting to cut out while turning.
Here is the problem I am having. I can drive at 65 fine, hit 70-75 and it wants to start cutting out. If I go into passing gear it starts to cut out but, it does gain speed. Then it will still act like it wants to cut out even when I slow down. And it idles fine after but when I start to take off it acts like it wants to cut out and die. If I let it cool off for a few hours I can drive it all over town with no problem unless I climb a hill and it goes into the passing gear. Then I have the same problem. On level ground I can drive for hours 65 and under.
So I took it to a mechanic who did a pressure check and scan. He said the pump is fine along with the pressure at and a little above 66 and no pressure loss even when turned off, no leaks. And it isn’t throwing any codes now. My check engine light is off. So he said do a tune up and we would go from there. He charged me $35.00 for the pressure check and to run a scan. He wanted to do the tune up for a few hundred. That I can do. Anything they do around here is expensive. He named off some things it may be and what he would have to do to repair or even check. He gave prices none of which were under $300.00 some exceeding $500.00. He told me I could safely guess that it will cost me around $800.00 minimum and maybe more. So, I changed the plugs, wires, PCV, fuel filter, oil change, air filter, cap and rotor, new thermostat and did a flush. The temp is fine on it and it is not overheating. I was just trying to make sure that wasn’t it. But it is still doing the same thing, only in the ranges I mentioned above. I hope you have some ideas.
have the same problem?
Wednesday, August 25th, 2010 AT 12:03 AM