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Slight fluctuations during constant speed

Old Aug 10, 2016 | 05:48 PM
  #1  
peterdulux's Avatar
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Slight fluctuations during constant speed

Been searching but haven't yet found anything that answers my issue. While driving at highway speeds and slower, I get these slight decreases, or slight fuel cut outs, kinda like being buffeted by the wind of a semi truck when you start to feel it's draft. And I mean, ever so slight.

Kind of like when the AC kicks on and off.

You can feel it when you lift off the pedal as well.

Tried to replicate it with the cruise on. It's smooth with the cruise on, no issues there.

Am I dealing with a throttle position sensor issue or something else?

2008 panel w/2.2 27,000 km
Old Aug 10, 2016 | 06:01 PM
  #2  
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If it is smooth on cruise then it would be the pedal position sensor as a possibility, not the TAC.
Old Aug 10, 2016 | 06:13 PM
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That is actually attached to the pedal, correct?

While you're here, I have to replace a rear hub. Which brand from rock auto should I use?
Old Aug 10, 2016 | 06:30 PM
  #4  
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My answer is always : if you buy the $20 part instead of the $100 part you can afford 4 failures. That goes for easy to replace parts anyway.
Old Aug 10, 2016 | 06:38 PM
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Try the deals at wrench monkey or prime auto, they ship from Canada I'd suggest TRW but their made in China now, it's really up to you, I've gone thru four front sets of different brands and two rear sets, in 351,007 kilometres, the longest lasting ones were Timken.
Old Aug 10, 2016 | 06:43 PM
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Good advice from both of you. I'll post my results when I have some.
Old Aug 10, 2016 | 06:46 PM
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In Canada your best bet is Prime Choice, they offer better prices on ebay than direct usually. Shipping within Canada is a big plus. I have had good warranty experience with them, usually you can pay a few dollars more for lifetime guarantee.
Old Aug 10, 2016 | 06:51 PM
  #8  
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Your surge could be a dirty throttle body, give it a good cleaning with the correct throttle body cleaner!! And be careful not to move to butterfly, it's to easy to strip the gears inside the drive motor
Old Aug 23, 2016 | 04:34 PM
  #9  
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Picking up where I left off on the hub. Ordered from Pock Auto, super fast. Looking for a how to for rear hub replacement.

Do I have to completely disassemble the rear brake assembly?
Old Aug 23, 2016 | 07:01 PM
  #10  
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Just figure out how to get to all 4 bolts on the back of the mount, one of them takes some innovating.

Don't need to touch the brakes, just the drum.

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