How to fix hesitation under acceleration or heavy throttle in your car

Lost your train of thought.... Lol so nice to know someone else besides me does this. Thank you my friend

Thank you for sharing your troubleshooting process. I am facing the exact same issue and will go for changing soark plugs as well.

Yes. I like watching automotive articles like this one. Actually I have subscribed to your channel. I'm Greg Santos, watching here in Manila, Philippines 🇵🇭

Received your video as a recommendation in my youtube, Been a diy guy myself who services his own bikes, this ism y first time doing a car service at home. Been learning everything even engine overhaul from last 5 years have gained the therotical and some practical knowledge at friends workshop. But I've a question for you sir, how do I clean my car radiator and condenser fins ? There's the britecoil, tertaclean alkaline solution that doesn the job perfectly but many claims it burns the aluminium lines. Also I'm gona clean the intake manifold and fuel injectors Can I reuse the same gaskit ? My cars maruti Suzuki astar 2010 model type 1.

Love video thank you !

Thanks. Same issue. Sorted

It is my birthday today, thank you 😁🎉

This is exactly what my kia is doing. Thank you so much for information!!!

Subscribed.

good job.

My throttle body is stacked open. Mass airflow (MAF) sensor/volume air flow (VAF) sensor - range/performance problem Mass Air Flow Circuit Range/Performance Problem, Intake air flap control actuator position sensor - circuit high, Intake air temperature (IAT) sensor - high input, Mass airflow (MAF) sensor/volume air flow (VAF) sensor - range/performance problem. Can you think those faults can cause a fault to my throttle body to be stuck open? Thank you very much for this video. It's always something to learn. Much appreciated. I will follow any advice. First I will start with this one.

First of all thank you for answering to every comment! I got some issues with Nissan Primera P11. Its SR20De engine. When the engine is cold and I accelerate a little on idle, the RPM stays for a few seconds by itself. Changed sparks, cables, distributor cap, cleaned MAF and even changed the knock sensor. It is very odd, the RPM just stays on for a few seconds then it drops

Another good thing to look at is if there is oil in the spark plugs or coils. If there is, replace the valve cover gasket. That’s what I’m doing to hopefully fix my issue. If that doesn’t fully fix it I’ll check the sensors too. I already replaced the spark plugs.

Looks like you reply to every comment on here so I'll give it a shot. I have a 2013 BMW 528i xdrive that hesitates when accelerating. The problem did very minorly begin after changing out the spark plugs and coil packs. 3 months after changing those (spark plugs and coil packs) I installed an exhaust cutout that bypassed the resonator and muffler. This when I really started to notice the issue, although it might have just been a coincidence. Since then, I have switched the coil packs back to the original ones with no improvement and I have gone through 2 tanks of fuel injector cleaner with no improvement. I noticed my vacuum line had some oil in it from the vacuum pump sucking up engine oil so I am replacing the vacuum pump next. I think the vacuum line operates the wastegate and maybe that is affecting my car? If the vacuum pump doesn't work, I will do the spark plugs again. Maybe I bought bad spark plugs. Permanent engine code cylinder 1 misfire P0301 and stored code engine too lean P0171

Oh oh oh... I was going to use brake disc cleaner on the maf sensor... thank you for pointing out the right stuff to use. I have a C220 cdi, 16 years old with 109k miles. I've had it 5 years and acceleration from start is very slow untill the turbo comes in. There are no fault codes for the maf but I'm sure a good clean / maintainance could maybe fix the acceleration issue. It is too lazy for a 2.2 engine, there must be something wrong. If this is still the original maf sensor, I'm thinking it might still work but after all these years never cleaned, maybe, maybe it is not reading correct values.

I’m having a similar issue with my 2011 GTI although I’m only getting hesitation briefly at higher RMPS in gears 4-6 the car has an APR stage 1 tune high flow cat and down pipe along with a cold air intake it has a few codes that I haven’t been able to troubleshoot those being MAP/MAF Throttle Position (P0068) Mass or Volume Air Flow Sensor "A" Circuit Range/ Performance (P0101) and Fuel Rail/System Pressure - Too High (P0088) I’ve cleaned the MAF and felt the hesitation again recently I’m pretty stumped advice would be awesome

thnx for this info. i am new to ur channel. keep up the good wrk. we need more ppl like u. do you know the reason for a good running old 2009 vehicle with 195thou miles that now just sudden has developes a weird feeling in the STEERING WHELL when driving. It not from the front ends. i am sure. It feels more a grinding feeling in the steering, not a vibration, but a not so smooth feeling anymore as when it was new. It is weird, and hard to really explain. This vehicle runs great still. You feel it in the steering wheel when the engine is running, this sensation is not felt on the body of the vehicle at all. thnx.again.

I like this. : ) Facing similar issue. Pulling my hair out. I'm not a pro mech. What other clues lead to you the particular spark plug?

Hey Sir I have a 95 Nissan hardbody truck 4 cylinder 2 wheel drive. 5 speed. I have problems when taking off in the low gears of trk jerking and some rough idle. We have replaced throttle body position sensor still same situation. We cleaned throttle body. If it is not the mass air flow then what else do I need to check. Thanks

I like your video.