2001 Malibu sputtering @ 2,000 RPM

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  #1  
Old 11-08-06, 07:08 PM
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2001 Malibu sputtering @ 2,000 RPM

2001 Malibu 3.1L V6 (150,000 miles) breaks up and sputters @ 2,000 RPM or under a load at low RPM's.
It feels like it's ignition related that way it cuts out.
Any body else had this experience and resloved it ?
 
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Old 11-08-06, 07:20 PM
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Go buy some good fuel injector cleaner. Malibu's are notorious for fuel injectors getting clogged. It may take a tank or two to get back to normal.


Here's the technical service info.

TSB #030604030 -- MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT (NHTSA ID #10002166, JUNE 01 2004)
 
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Old 11-08-06, 07:32 PM
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Thanks for the reply.

I've been routinely adding high quality injector cleaner with no results.

Can you recommend an injector cleaner that works ?
And the sputtering is a hard jolting or sputter instead of rough running. It feels like it's ignition related.( I could be wrong).
 
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Old 11-09-06, 03:56 AM
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How long since the fuel filter was changed? Another possibility.
 
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Old 11-09-06, 09:08 AM
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take a DVOM and measure the resistance between the two terminals on top of EACH ignition coil. remove the two plug wires on any coil and expect a reading of 5k-10k ohms. this should be consistent from coil to coil (check all three) and if you find one that's way different (probably higher) that's your problem. BTW...when were the plugs replaced last?

you can also check the plug wires this way...test from end to end and 1k ohms per foot is a rule of thumb. mainly look for consistency between measurements.
 
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Old 11-09-06, 05:16 PM
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The wires and plugs were replaced about 50,000 miles ago.
The problem developed about 30,000 miles ago.
I replaced the original plugs with Bosch plugs and have been wondering if If I should go back to OEM's.
I did replace the wires again about 10,000 miles ago thinking the wires were faulty with no results after.
I will do the Ohm check on the coils.
Thanks.
 
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Old 11-09-06, 05:40 PM
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I agree. Replace your plugs again. I had a similar problem with my old Ranger. I got Bosch Platinums and my truck was only supposed to take OEM.
 
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Old 11-10-06, 05:13 PM
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have you checked fuel pressure
 
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Old 11-10-06, 08:28 PM
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The fuel pump, sender & filter are all fairly new.
Could be fuel but my gut feeling and experience tells me ignition.
When I go full throttle it tales off with no hesitation, it only breaks up under a slight load like at 65 mph in overdrive (@ 2,000 RPM) and keeping up on a slight grade as if the ignition cuts in & out.
 
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Old 11-11-06, 05:22 PM
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try ign module
 
  #11  
Old 11-13-06, 06:15 AM
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bosch platinum plugs are junk...go with OE plugs. poor quality plugs and/or wires can lead to coil failures. fairly common for the person who waits too long to change plugs...(i know that's not you), i'm just sayin that it's not uncommon to find plugs past the worn out stage when you find a failed coil...cause and effect relationship in action.
 
  #12  
Old 11-13-06, 11:14 PM
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Smile

Originally Posted by Mackey
2001 Malibu 3.1L V6 (150,000 miles) breaks up and sputters @ 2,000 RPM or under a load at low RPM's.
It feels like it's ignition related that way it cuts out.
Any body else had this experience and resloved it ?
Check cam sensor ,Ihad the same thing with 96 grand prix 3.1
 
  #13  
Old 12-16-06, 01:04 PM
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Resovled Sputtering / Cutting Out Problem

OEM does it again !

I replaced the Bosch Platinum plugs and aftermarket wires with OEM's and the problem is gone !

No more sputtering, no more rough idle, no more breaking up at any RPM.

It feels like new again.

Thanks for the help !

Mackey.
 
  #14  
Old 12-16-06, 08:05 PM
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I agree 100% carguy.........I'd NEVER put Bosch in anything that wasn't designed with them as factory......and to tell you the truth........I was surprised as heck while tuning an Audi, the plugs I removed had the Audi emblem on one side...........and NGK!!!! on the other........Now if the GERMANS don't trust their own spark plugs what does THAT tell us????
 
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Old 12-17-06, 06:07 AM
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The only car that I ever had that required Bosch plugs was my '74 Mustang II that used a Bosch ingintion system with points ( 2.8L V6) and believe it or not, it ran great with the Bosch system. This engine was a German design that later became the power plant for the Bronco II

But nowadays with electronic controlled ignition and fuel systems you do realy need to stay with with OEM stuff.
 
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Old 12-17-06, 06:35 AM
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I can understand that ....If we go back far enough........(showing my age) The Pinto 2.0 and the Capri 2.8 were both out of the "Taunus" factory..........German Ford........and I believe the 1.6 in te Pinto was English????
 
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