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Anonymous Posted on Jul 14, 2014

Why does my blazer lose power going up hills?

Losing power going up hills and service engine light starts to blink after we make it to the top light stop flashing and it picks back up and goes

2 Answers

Kar Volk

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  • Expert 39 Answers
  • Posted on Jul 16, 2014
Kar Volk
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I would say fuel pump may be going bad or clogged ( screen on pump) ! fuel filter changed recent ?

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  • _-__-___-_
    _-__-___-_ Jul 16, 2014

    can be lots of reasons, misfire, and fuel starvation are 2. knowing which puts you on RIGHT PATH, any scan tool and 15min work, finds it. but fuel pressure tops list if all engine sensors show good, and no loss of compresssion. there are about 10 tests. you can guess, or test.

  • _-__-___-_
    _-__-___-_ Jul 16, 2014

    note how engine is still unstated, so all anwers are guessing . so far.

  • _-__-___-_
    _-__-___-_ Jul 16, 2014

    4.3 L (262 cu in) Vortec 4300 V6 2.2l 4-cylinder inline petrol

  • _-__-___-_
    _-__-___-_ Jul 16, 2014

    or is the transmission slipping, i assumed (bad) that its not. and is obvious when does.

  • _-__-___-_
    _-__-___-_ Jul 16, 2014

    btw 2, CEL lamp blinks on all USA OBD2 means gloss misfire. and that is not low fuel pressures. its flooding or misfire. gross the flashing , if you read the book, in glove box , say to slow down an fix it now. the flashing means the CAT is about to burn up. that is the flash. on OBD2 spec usa cars. and light trucks.

  • _-__-___-_
    _-__-___-_ Jul 16, 2014

    if i was driving the misfire would be obvious, quite different from bogging or the stinch of raw fuel in the air flooding, and the sticking CAT at shut down or its gloing red hot. all clues.

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  • Chevrolet Master 20,706 Answers
  • Posted on Jul 14, 2014
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That lamp means.

SCAN ME.
really. or work blind. and spend a fortune on useless parts.

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2 Related Answers

Anonymous

  • 4669 Answers
  • Posted on May 30, 2009

SOURCE: had major tune-up and tranny service done now it's hesitating going up hills and the engine light came on blinking and then went off but it loses power going up inclines edit save Saving... Last step

Sounds like a bad plug wire or coil.

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Anonymous

  • 259 Answers
  • Posted on Sep 01, 2012

SOURCE: loses power shuts off and blinking engine light

Fuel pump may be giving out or fuel filter is clogged or if your car has a regulator, that too may be going bad. Check all three or have someone do it for you.

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