Question about 2010 Chevrolet HHR

1 Answer

I have a flat spot at 3200-3500 rpms on 2.4 ectec do you have any cures

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Chevrolet Master
  • 44,589 Answers

Run the fault codes to check for possible sensor failures. this could be injector related but it will be difficult to find as the rpm range is only 300 rpms. This could equate to a down shift of the transmission as there is about 300rpm between ratios in the box.

Posted on Dec 15, 2014


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Hydraulic lifters noise cure

depends on why noisy if rockers are loose -(tighten to specs)--bad push rod -(clean sludge or replace if bent)--lifter itselt-(flat spot- collapse -dry replace ) cam shaft -(flat spot repair or replace ) oil pressure /system (sludge or under pressure repair or replace )

Oct 05, 2015 | 2004 Land Rover FreeLander

1 Answer

Where to adjust Nissan sunny 130y carburetor idle speed n air fuel mixture

there will be screw with a spring under the head at the base of the carby
it is normally a small brass screw with a flat blade slot
turn it all the way in and then back it out around 2 turns
final tune is with the engine at operating temperature turn it in slowly until the rpms start to fall
slowly turn it back out until the rpms again start to fall
take notice of how many turns between in and out an final tune will be in 1/2 that number of turns
fully in then out 2 turns
turning it in and the rpms fall
turning it out and counting the number of turns gives you 1 1/2 turns till the rpms fall
turn it back in 3/4 turn

Oct 03, 2015 | Nissan Cars & Trucks

1 Answer

2005 Chevy blazer 6cyl 4x4 , car hesitates between 1500-2000 rpms

hesitation (flat spot) was common with cars sporting carbys
as it should be an EFI controlled engine then run the fault codes and look for accelerator position sensor., throttle motor , MAF/VAF sensors

Aug 19, 2015 | Cars & Trucks

1 Answer

What is the cause of a flat spot while driving

Hi Khalil:
There are two sources that I am aware of:

1) If an emergency stop was made and the tires wire locked up, as the vehicle skidded to a stop, rubber was scrubbed off the tires from friction with the pavement. When trying to drive on these tires, the flat spot will cause a discernable "bump" when impacting the pavement.

2) While not as common, older or inadequately inflated tires on parked vehicles will present a "flat spot" when the vehicle is first used. This will be particularly obvious in cold weather. As the tires warm up while being used, this flat spot circumstance typically cures itself.

Hope this helps.

Jun 27, 2015 | Cars & Trucks

1 Answer

1999 bmw 316i compact flat spots & hesitation from 3500 RPM

the flat spot is a missing instruction in the CPU program in the ECM. Run the fault codes to check for faulty sensors or have the CPU program reset using the scanner. Loose wires would give a problem all over and not just at particular rpms

Dec 24, 2014 | BMW Cars & Trucks

1 Answer

I have a Toyota pickup 1994 manual, when i am starting to go in first gear my truck seems to like bog down but my RPMs are still rising. When i shift to second it does the same thing for minute then...

Mine has a flat spot around 2000 rpm ... which I've continued to ignore. Others have suggested that the Throttle Position Sensor needs adjustment.

Dec 21, 2010 | 1994 Toyota Pickup

1 Answer

Only runs at high revs

try changing out the distributer,the oil leak could could be causing the the for the melted rotor thats not normal.its very important to keep these conponents dry.what would happen if you was to put a couple of quarts of 10w-30wt in your flat screen tv? do you think the picture would be perfect? the ignition system is electronic.know what im saying.

Mar 21, 2009 | 1988 Isuzu Trooper 2 Door

1 Answer

Vibration When Accelerating

Did you machine the flywheel? Because if you replace the clutch without machining the flywheel. The flywheel will have high and low spots on it. The new clutch is perfectly flat, and the old clutch was worn into the flywheel. Thus, vibration! I sincerely hope that I helped. Best wishes to ya.

Jan 26, 2009 | 1989 Ford Ranger

Not finding what you are looking for?
2010 Chevrolet HHR Logo

38 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

76682 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides