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What could cause my car to misfire under load, like climbing a hill ...

auto-repair.yoexpert.com/troubleshooting/what-could-cause-my-car-to-misfire-under-load-like-758.html

A misfire under load complaint can usually be broken down into 2 categories. ... The transmission downshifts and the engine revs up to about three thousand ...

Misfire and troubleshooting the engine - The MGA With An Attitude

mgaguru.com/mgtech/care/cf106.htm

It is often said that for an engine to run you need fuel, air, and spark. ... on the carburetors for a smooth idle and to prevent hesitation on acceleration. ... Near zero valve clearance will also cause misfire, as a valve may not be closing ... higher speed, or climbing a long hill with higher throttle setting (hotter running conditi...

Engine Troubleshooting from Greg's Engine & Machine

www.gregsengine.com/gregs-engine-troubleshooting.html

My vehicle lacks power on hills but is fine on flat roads; Engine shakes while .... During acceleration this misfire gets so extreme it can cause the engine to stall.

Spark Knock - Auto Diagnosis Repair Help

www.aa1car.com/library/spark_knock.htm

The things that usually cause spark knock (detonation) are: ... a pinging or rattling sound (spark knock) when accelerating, driving up a hill, or when the engine is ...

Mercedes-Benz C-Class Questions - 1: When I press gas pedal, the ...

www.cargurus.com/Cars/Discussion-t22594_ds498354

Apr 5, 2011 ... It seems the car is misfiring the engine is under load, like when you are trying to ... Here are a few things that could cause this kind of drivability ..... losing acceleration only goes up to 20 ,most when climbing towards the hill ...

454 P30 Chev Misfires When Hot Under Load - Engines - FMCA ...

community.fmca.com/topic/2513-454-p30-chev-misfires-when-hot-under-load/

When engine hot on the highway, when second venturi of ... ... This happens ofter when pulling up a rolling hill or accelerating briskly from stop. ... It's also known that old spark plugs & plug wires can cause the problem you ..... OP says :454 P30 Chev Misfires When Hot Under Load I don't think what OP is ...

Severe miss-firing under load - Maintenance/Repairs - Car Talk ...

community.cartalk.com/t/severe-miss-firing-under-load/69282

Nov 7, 2011 ... It has 179K miles and supposedly about 5k on a new engine, what ever that may be. ... does the trick to keep the engine running smoothly while climbing the hill. ... If you don't have codes then I'd be surprised if the issue is actually a misfire. ... Missing under load is a symptom of bad plugs and bad coils.

What can cause jerking on heavy acceleration when AC ... - CarGurus

www.cargurus.com/Cars/Discussion-t32637_ds526580

Aug 12, 2012 ... Today I go out and have the AC going, the check service engine light comes ... I finally figured out what was causing my car to jerk upon fast acceleration. .... the car cant move good again, cant climb hill with it force and speed, ...

Hyundai Tucson Acceleration Problems - Car Forums at Edmunds.com

forums.edmunds.com/discussion/9784/hyundai/tucson/hyundai-tucson-acceleration-problems

No engine lights come on, no overheating, nothing!!! .... that the engine was not getting the gas it needed as it would cough and stutter when I tried to climb hills or increase power, the pump and filter seemed to be the cause.

Symptoms of a Bad or Failing Variable Valve Timing (VVT) Switch ...

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-variable-valve-timing-vvt-switch

Jan 13, 2016 ... A faulty VVT switch will also cause the engine to misfire or appear to stumble when your vehicle is loaded with extra weight, climbing hills, or when you apply quick pressure to the throttle for instant acceleration.

More Info

Why would a car hesitate or stall when going uphill? | Reference.com

www.reference.com

Because driving uphill puts the engine under... ... Why does a car misfire when in idle? ... Fuel intake deposits can also make it hard to start a car or may cause the ... If the car smokes after acceleration from a stop, it is typically an indicator that ...

Diagnose this car problem please [Archive] - Straight Dope Message ...

boards.straightdope.com

As I'm accelerating up the hill, it feels like the engine is "missing" or skipping. ... or does it correspond with foot-to-the-floor acceleration, hill or not? Missing under heavy load -- such as climbing a hill, but also accelerating full ... A bad vacuum advance line or diaphragm can also cause hesitation on hills.

Engine Misfire/Sputter - Discussion on Topix

www.topix.com

The funny thing is that the check engine light does not come at all. ... enough load at lower gears to put a big enough strain to cause it to misfire. ... at highways speeds(50-60mpg) under load(going up slight hills) and it would do ..... Retail sales climb on gains in autos · 2017 Silver Chevrolet Equinox · 2017 ...