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Some times when accelerating from a complete stop in drive the car feels like the tranny slips but if I put it into gear 1(or low or whatever) it takes off completely normal…
And other times lately it feels like the front right wheel isn’t geting power for the first few seconds then you can feel it jerk a little and go but it does this while the front left is still making it go. I’ve had the car for about 6 moths and it’s been like that since and is really annoying ha, any help would be appreciated thanks it really stumps me that it doesn’t when I manually select 1st gear but it does in every other gear
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Color is good and it’s definetly not low maybe a little high I feel like I didn’t get a accurate reading it has been serviced by the previous owner and had the filter replaced but that was at about 75000 and now it’s got about 175000 miles
It’s just a single jerk when accelerating from compleat stop on anything unless starting off going down a hill
routine fluid and filter replacmeent is ever 30,000 miles for the 4T65E, the color of the fluid should be a nice pink or red color, if its starting too take on a brown ish color its time for a change if the fluid was replaced 100,000 miles ago i would recommend just doing a filter and fluid change don’t do a flush. check the fluid level with the car on a level surface with the transmission in park and the engine running, if the fluid level is within spec and of the right color and doesn’t smell burnt i would look elseware first.
do you have a engine light? did you check for codes? sometimes when there are transmission issues like slippage the transmission will go into long shift adapt mode and shift harder and throw a code for adapt long shift.
so you are saying the car pulls to a spacific direction? with that i would check your engine mounts as they are VERY common to go bad with these cars! the engine mount is located below the engine harmonic balancer, too test it have a buddy get into the car, i would recommend blocking off the wheels at the rear, with the engine running and your foot FIRMLY on the gas CAREFULLY apply the throttle, if the engine seems too rise from the engine bay i would suspect the engine mount, also give it a visual inspection, is it falling apart, if it is replace it because this can cause clunks, pulling and other weird things, it is a VERY common failure with these cars at high miles.
this applies too your vehicle.
http://www.ericthecarguy.com/kunena/common-problems-pattern-failures/50806-gm-w-body-cars-3100-3400-sfi-3800-enginesand check this out
http://www.ericthecarguy.com/faq/solving-transmission-problemsI replaced engine mount because the jerking but it didn’t stop the fluid is a good pink and there are no transmission codes, but I do have some lean codes and also a few o2 codes that are throwing it
the issues you may be experiencing may not be transmission related but engine related, my suggestion to you is too observe the wiring too the upstream O2 sensor, look at the sensor itself, if it is the factory sensor its about time for replacement but before you replace that sensor lets look at some diagnosis.
first i would observe live data for that 02 sensor after looking at the wiring and connector and checking for corrosion first, if that all checks out check the operation of that sensor on a scan tool, live data, the voltage for the upstream O2 sensor B1S1 or “Bank one sensor one” should bounce between .300 and .800 Volts give or take a little, and should do so somewhat rapidly, if it sticks at a low voltage than that 02 sensor should be replaced. the B1S1 O2 sensor is located behind the engine on the exhaust manifold at the back, sort of next too the firewall… that is O2 B1S1.
i would also give your mas air flow sensor a good clean with mass air flow sensor cleaner, once you have done that then try and see if that helps the jurkey feeling you feel!
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