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98 BLAZER LT, Just had a new crate motor installed. Now after installation of motor a number of things is not working. 1 gas gauge fluctuates, either reads full or empty but gas light does come on when low on fuel. 2 abs activates when traveling at slow speeds. 3 all kinds of problems with blend doors opening and closing constantly. Sometimes all hot air then all cold air. Any help on these issues is greatly appreciated.

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  • Cars & Trucks Master
  • 1,089 Answers

The best professional advice I can offer u is return it to installed the motor & explain whats going on. Evidently there are either bad electrical connections, vacuum lines or damages during installation. They might not take full responsibility but they will probably work with u. good luck

Posted on Jul 15, 2017

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6ya6ya
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Posted on Jan 02, 2017

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honeymokey
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SOURCE: air blend door

Replace the broken actuator.

Posted on Apr 15, 2009

  • 2 Answers

SOURCE: gas gauge reads empty but tank acts like it's full

I also have a 04 with a 1.8L. same problem. I took the fuel regulator off. It is a black box behind the rear tire under car. It only has 2 bolts to take off. After that there is a couple of vent hoses from the tank going to this box. Unplug them and 1 electrical connection. The electrical connection and one vent is connected to a T connection on the box that you can unplug by twisting on the T. Take that T off and look inside where you unplugged the hose on this T. There is a spring and a little plunger inside this tube. The plunger gets stuck. I took a little screw driver and some PB blaster and worked that plunger back and forth a couple dozen times and it unfroze. Put it back together gassed up just fine. I did not look but I was told regulator can be replaced for 200$. But a can of blaster is cheaper.

Posted on Jun 10, 2009

  • 497 Answers

SOURCE: 2002 Chevy Suburban: Fuel gauge reads empty, tank is half full

Youre gauge is controlled by a plunger in the fuel tank which is attached to the sensor and the fuel gauge. it sounds like when the plunger goes down half way its either getting stuck down lower then it should. Needs replacing. Any mechanic can do this install for you.

Posted on Aug 27, 2009

citroenchris
  • 600 Answers

SOURCE: 2000 buick century custom. fuel gauge fluctuates

The sender unit has a fine resistance wire with a slider to read the level, the slider or wires are worn and making intermittent contact, the low fuel light is a seperate switch so it will still work.access to the sender is usually under the rear seat cushon, under the soundproofing and a cover, have a look and describe what you have .

Posted on Nov 01, 2009

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