1998 Chevy Blazer Fuel and battery troubles.

Tiny
AMNDA62
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Okay I have two problems that I have recently noticed might be connected and was wondering what is going on. The first problem is the fuel system. It wont start unless I pour gas into the intake manifold and pump the gas pedal while I start it. If I give it gas sometimes its like it is choking and if I don't let off the gas pedal fast enough it dies, usually when I am shifting from reverse to drive. It also chokes on hills. By chokes I mean it is like it is getting to much or not enough gas. It does it just driving too but not as much.
The second problem is the battery. I have had this blazer for five years and I am on the fourth battery.
The the new thing is if I am in park and I roll the windows up the engine dies, but it sputters like it ran out of gas. Also, the lights and radio still work after it dies.

Thanks for you help
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Tuesday, October 12th, 2010 AT 7:42 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You really need to ask separate questions because it becomes way too hard for anyone to follow.

Your starting problem is most likely a bad fuel pump. You need to get a fuel pressure gauge and test the fuel pressure while attempting to start it in the morning. This is a high pressure system and requires a minimum of 55 PSI to run. Any less will cause the problems you are experiencing.

I also recommend using nothing but Delco brand fuel pumps as the others create numerous problems.
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Wednesday, October 13th, 2010 AT 8:03 AM

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