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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 ...

Engine Misfire/Sputter - Discussion on Topix

www.topix.com/forum/autos/chevrolet-equinox/TVIMBF7PO1ECEKF08

Jan 25, 2011 ... I have a 2008 Equinox LT FWD with the 3400 motor in it with 89,000 miles. ... highways speeds(50-60mpg) under load(going up slight hills) and it would do ... load at lower gears to put a big enough strain to cause it to misfire.

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 ...

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

www.reference.com/vehicles/would-car-hesitate-stall-going-uphill-b5012a7758d8d937

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 ...

Why Does My Car Lose Power - 8 steps (with ... - Motor OneHowto

motor.onehowto.com/article/why-does-my-car-lose-power-292.html

In most cases, a loss of engine power will relate to a mechanical failure in your ... For cars with an ECU (Electronic Control Unit), an error of this type can cause the car to lose power. ... so when you press the acceleration pedal is because your fuel filter is bad. ... I was driving it home, and it lost almost all power going up hil...

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/

Nov 14, 2011 ... 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 ... if you floor it and accelerate hard then the motor will start misfiring and popping. ... You also mentioned the issue also happens when climbing...

5 Common Symptoms of a Malfunctioning Fuel Pump | eBay

www.ebay.com.au/gds/5-Common-Symptoms-of-a-Malfunctioning-Fuel-Pump-/10000000177634796/g.html

Next, we'll detail common symptoms, everything from engine misfires to cars that won't start. ... pedal, a working pump increases the flow of gas or diesel to fuel acceleration. ... Generally, this occurs when climbing a hill or when hauling a load.

Diesel Trouble Shooting - Flashoffroad

www.flashoffroad.com/Diesel/troubleshoot/troubleshoot.htm

Apr 22, 2003 ... Trouble shooting the GM 6.5 diesel engine in Hummers and GM ... 2500 RPM on heavy acceleration or up steep grades while trying to ... Now remember these are Florida hills, not mountains. ... That could be causing the misfires. .... Stalling When Climbing on One Side Diesel Fuel Return line Kinked.

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.

More Info

Misfire and troubleshooting the engine - The MGA With An Attitude

mgaguru.com

Oct 31, 2005 ... It is often said that for an engine to run you need fuel, air, and spark. ... for a smooth idle and to prevent hesitation on acceleration. ... Near zero valve clearance will also cause misfire, as a valve may ... This condition gets worse under high load, higher speed, or climbing a long hill with higher throttle settin...

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. ... milder accereration -- or does it correspond with foot-to-the-floor acceleration, hill or not? Missing under heavy load -- such as climbing a hill, but also ... While not as likely as the fuel filter, air filter restictions can cause pr...

Engine Troubleshooting from Greg's Engine & Machine

www.gregsengine.com

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.