Freshly Rebuilt motor misfiring..
#1
Freshly Rebuilt motor misfiring..
Just bought a rebuilt motor and put into my 2008 Scion tC. I've replaced most Parts along with the motor but I am getting a misfire on All 4 cylinders and it is not running properly.
I've replaced the throttle body, the mass airflow sensor, spark plugs and I'm about to replace the ignition coils.
Can anyone else suggest anything else that I might be missing?
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I've replaced the throttle body, the mass airflow sensor, spark plugs and I'm about to replace the ignition coils.
Can anyone else suggest anything else that I might be missing?
*Moved to Correct Forum by Administrator
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Last edited by MR_LUV; 07-02-2019 at 03:26 AM. Reason: Moved to Correct Forum by Administrator
#8
Update.... still misfiring after the new ignition coils. And I did not notice any kind of leak on the manifold and checked all bolts. I am at a loss right now and the next thing I can think of is the injectors or the fuel pump.
#12
You probably already did this but also check the vacuum hoses for cracks or splits. You have a evap canister purge valve mounted next to the MAF sensor. A stuck valve can cause a vacuum leak which might throw off your intake air reading. A purge valve test might determine whether it's stuck open or closed.
#14
Well I went ahead and changed the intake manifold gasket as it seemed cheaper to start with. Didnt see much change in the running of the motor.... going to change out the purge valve next and keep going from there.... eventually I will change out the right part lol
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