Question about 2005 Chevrolet Malibu

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While driving, the car will loose power and return immediately, no mil lights are on. I though It might be a fuel injector problem but not sure

I notice the problem occurs more often when car is driving uphill or under a load, but still happens during routine driving.

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  • Chevrolet Master
  • 4,536 Answers

Shud get car scanned even tho no lite--computers are wierd-----cud be a transmission issue too--the idle air control may be dirty or egr valve--ignition components like plug wires--coil....are aging--getta haynes manual at partsplace

Posted on Jan 21, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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bibleman01
  • 334 Answers

SOURCE: Driving and car dies. Will not restart

It could be two choices either trouble with ignition or fuel. Check to see if you have fire at the spark plug. If you do then i would say its the fuel pump. If it was injector it would have to all of them at same time and that's not likely.
God Bless Greg

Posted on Nov 24, 2008

  • 1 Answer

SOURCE: 92 S-10 4.3 ltr seems to be flooding

The fuel pressure regulator may be failing. If your engine code is "W" the regulator is under the upper intake manifold. You may replace the entire injector package or just the regulator.

DORMAN regulator Part # 55162 about $40
ACDELCO CPI injector Part # 2171431 about $400

These parts may last slightly more that a year if you are lucky. I carry an extra regulator and manifold gasket at all times.


Posted on May 13, 2009

  • 1 Answer

SOURCE: 2001 chevy truck V6 Occasional miss/fuel problem during driving

Common on these for the fuel injection spider to go bad.

Posted on May 14, 2009

flbergeron68
  • 541 Answers

SOURCE: 98 silverado 5.7l no power when under load

no codes ? it happens, guess we'll go the old fashion way then. you are going to have to test every sensor like throttle position, idle mixture, mass air flow etc. and replace the ones that are defective. does it smell like gas coming from the exhaust ? this could be the choke being stuck, also controlled by computer that controls everything from the info it gets from the sensors.

Posted on Jul 06, 2010

  • 1 Answer

SOURCE: hesitation under load ,creating a misfire code that clears in three drive cycles

Egr valve port hole have to remove the intake to clean but that's my problem rite now on a 4.3 vortec the port hole gets cloged with carben not slowing it to work properly.

Posted on Jun 07, 2011

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Po171


So all your saying is you never Googled the
OBD Code PO171 & have no idea what it is
or what to do
The fuel filter has no ties to any sensor & you change
it every 3 or 4 years
Any product you buy like injector cleaner is a waste,
16 oz in a 18 gallon tank of fuel. Ask yourself Diluted
like that, what would that do,ever see that recommended
buy any manufacture,nope
How about studying OBD Systems & get up to speed
What about the 171 code & changing front oxygen sensors
every 100,000 miles or component test yours,check for vacuum
leaks,smoke test the intake,check fuel trim,do something to actually find out why you have a fault code
Why has any time passed since the MIL lamp came on?
You diagnose all check light issues the next day, with any
vehicle problem,only been 30 years or more since we got
check lights on all vehicles

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