Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello my name is XXXXX XXXXX I can help
This engine does not have a PCV valve it is built into the valve cover
Hmm.. where exactly
The right valve cover has a orifice drilled in it. There is no valve any more
Ok I understand... What about spark plugs?
Need to remove the upper intake to get the coils out than remove the plugs
Spark plugs are 100.000 mile plugs
You know I feel that the car performance is below the expectation
what to do to optimize the performance
Now the plugs almost 55 miles running (85,000km)
sorry 55k miles
They should be ok
Ok what do you advise to make sure that the performance is ok?
Do you have any engine lights?
What is it doing?
When you accelerate it won't give you the real acceleration like before..
I am not happy with that
i feel something consuming power without output
the truck front wheel drive or all wheel drive
Does the trans fell like it is first gear on take off
Yes.... transmission shifiting is ok. but sometime on the highway at fixed speed, it will be 6th gear and suddenly will go back to 4th or 5th gear for 30 secs then will go back to 6th gear with pressing on the acceleration pedal.
sorry for typo error
transmission oil I am changing every 10,000 km plus mines.
With out any codes or being able to drive it . Hard to tell you what to do. Can you test drive another Traverse
the milage now is almost 133,000km
We have had trouble with trans wave plates breaking. the fluid has a lot of metal in it
the transmission fluid is clean and there is no metal with it.
the reverse gear is normal
Actually, I am asking for the reasons which affect the performance...(spark plugs, solenoid valves, ...etc )
what you recommend to check?
from simple parts to the complicated ones?
I would start with mass air flow sensor clean it. Check air filter. Check fuel pressure.
Do you have a scan tool to check for codes that may be in history but not turning the light
no, I don't... I am going to check what you have mentioned first in my home.
when it is cold does it run any better
We have had a lot of computer program updates may want to have it checked
first, where these sensors are located?
second, how to do this kind of software update?
oxygen sensor are in the exhaust manifold
Need to take it to a dealer or some one who has the equipment
ok I will check and come back to you tomorrow
anything else about the software?
Most of the update helps trans shifting
Please don't forget to rate me
but these updates can be done only in a workshop? or not?
can be downloaded through the internet
from GM site Dealer only or If some workshop paid for the right to do it
hahahaha.... It's not possible here.
but I will try to find some one who can do it.
thanks for your support.
Thank you for letting me help. I hope it helps
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