Shaking in Drive when at full stop

Dsupe77

Dsupe77

Member
Car
2012 FX35 AWD
Name
Dan
Having a little funky issue recently.

When driving and i come to a full stop the truck will shake for about 2 seconds or so then stop. Happens maybe about 90% of the time but once in a while it won't shake.

Sometimes it shakes worse then other times and i notice it won't really do it while the car is in park.

Maybe something with the throttle body? i'm at 70K and don't think I've had it cleaned before.

also notice the car feels like it drives a little shitty recently too so maybe whatever is causing that shake is cause my performance to decrease too.
 
I don't think it's the spark plugs or misfire...it's not shaking that violently. Just a mild shake.

I also notice that once in awhile the RPM's drop to 500 for a split second or 2 then go back up to the 700/800 range... that's what is making me think it's something with the throttle body.
 
Sounds throttle body. May need throttle body learn reset.
Have you done an ECU reset or check for any codes.
 
I assume tht you do not have a Check Engine Light. I suggest you have the vehicle checked for codes as there may be some that are not yet triggering the light. If that checks out, it is possible that you may have a broken engine mount that could be allowing the motor to vibrate slightly. It could also be something as simple as the exhaust rubbing against the body somewhere.
 
Dsupe77 said:
I don't think it's the spark plugs or misfire...it's not shaking that violently. Just a mild shake.

I also notice that once in awhile the RPM's drop to 500 for a split second or 2 then go back up to the 700/800 range... that's what is making me think it's something with the throttle body.
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have you checked to see if it’s your mass airflow sensors? I know when my airflow sensors went the fx lost all of its power and then I replaced them and never had the issue. At first I tried cleaning them but eventually just replaced them and also replaced both air duct intake boot assembly bc one of the mechanics actually noticed how they had small cracks and cause dirt to get in and mess with the sensors. The mechanic told me it tends to happen a lot bc the rubber cracks.
 
ocal21 said:
have you checked to see if it’s your mass airflow sensors? I know when my airflow sensors went the fx lost all of its power and then I replaced them and never had the issue. At first I tried cleaning them but eventually just replaced them and also replaced both air duct intake boot assembly bc one of the mechanics actually noticed how they had small cracks and cause dirt to get in and mess with the sensors. The mechanic told me it tends to happen a lot bc the rubber cracks.
Click to expand...

Thanks Ocal i'll check it out this weekend
 
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