Scotty have you ever been totally defeated?
Well as a confident man I am crushed and need your help. At the very least read this it’ll be fun!!
btw I lived in Houston for many many years and being back here in Chicago let me tell you I miss your radio show! You are a an American legend.
I am a surgeon and If you help me I will PERSONALLY treat any ailment you have pro Bono. Not joke.
I got stuck with a 2009 hybrid Tahoe 145k miles. I had no choice (divorce). Rhonda (I call her) has been having stalling, lurching and cylinder 7 misfires recently.
Rides very rough especially when idle or in reverse. Seems to be when the two mode is trying to shut down four cylinders or switching to hybrid mode. Also there is oil leaking out like crazy from underneath around the aux trans pump. the fuel pressure will go up and down while driving (I occasionally smell burning oil not gas).
the aux pump seems to be leaking engine oil and my mechanic verified it was indeed.I’ve tried green hybrid and Tahoe forums. Auto shops flat out tell me to go to the dealers except my mechanic friend who is literally doing the research I am.
I can’t accept taking it to a dealer who will just redo all the **** I did above and charge me 10K. I am an orthopedic surgeon and will repay the best help with free phone injury consultation for friends or family!!
All the below was done with a very competent mechanic...the THIRD ONE stumped by the problem. I own several cars and rent them on TURO so I am DETERMINED to get to the bottom of this.
Codes shown:
P0300
(P0307, P0430 & P0455 but not anymore all these went away )
says “service hybrid system” on dash.
Things we’ve tried:
-We checked the fuel injectors and they are in good shape.
-we did engine oil and trans oil changes
-we shifted the car into M and the same exact shuttering and sounds occurred when the hood was popped in auto stop.
No
. I placed the vehicle in park and attached two videos of the symptoms.
-cleaned out mass airflow sensor and replaced
-air filter change
-new 12V battery
-Changed all the spark plugs (yup went in behind the passenger wheel under the splash guard)
-changed the coils.
-replaced throttle position sensor and throttle and cleaned with electric cleaner
-used cataclean and laquer thinner on the cat through gas tank (like Scotty said) and that cleared the P0455 and P0430
-drove around with mechanic who had attached his 7k obd reader. He only saw misfires and said it’s communication between the hybrid trans and engine and its getting confused but he isn’t 100%.
Is it a matter of cleaning the corrosion on the hybrid dbattery?
is it the aux trans pump?
what in gods name do I do?!?
Please I’m begging you to help!
thank you!!
I’ll leave this for Scotty to answer.
Retired Biomed engineer surgery and anesthesia. What city do you practice in? Curious, may know you.
Well it has a hybrid problem for sure. And really you can't work out one of those things unless you have years of experience and a GM dealer scan tool to do bi-directional testing of that stupid hybrid system.I even advise people not to buy a Toyota hybrid because eventually even they break down but the GM's they probably make the worst hybrid system on the planet. You might just cut your losses on that pilot junk sell it for what you can get
