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JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 16039
Experience:  ase tech
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My friends car is unable to sit stopped at a red light

Customer Question

My friends car is unable to sit stopped at a red light unless it is neutral. When the car sits idle in drive it shakes and starts to stall sit especially when the AC is going. The car also makes a loud screeching noise when not "warmed up" and the serpentine and pulley were just replaced. Is all of this connected or are there multiple problems?
Submitted: 1 year ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 1 year ago.

is the engine light on?

Customer: replied 1 year ago.
all the time
Customer: replied 1 year ago.
Expert:  JOHN aka Eauto replied 1 year ago.

do we know the codes?

Customer: replied 1 year ago.
Codes Idk about
Expert:  JOHN aka Eauto replied 1 year ago.

sounds like the tcc solenoid is stuck on the transmission and a transmission shop should look at it and verify

The check engine light comes on when the on-board computer detects a fault in engine driveability or performance, transmission control system or transmission, or the emissions system, and a fault code is set and stored in the computer. Faults that can set the check engine light can range from a vaccuum leak, engine mis-fire, low engine compression, faulty sensor such as O2 sensor or other engine sensor, hydraulic pressure loss in transmission, transmission shift solenoid, open/short in wiring harness, emission evaporative system leak, or one of over a hundred different reasons.
The only way to know what set a fault code and turned the check engine light on is to have a diagnostic scanner hooked up to the on-board computer and read it for stored diagnostic fault codes. Many auto parts stores will do this service for free- (like auto zone)check with you local parts stores. If none in your area do, then you will have to take it to a shop and pay to have the computer read for stored fault codes.

Without knowing the fault codes numbers, it would be irresponsible to guess as to the cause as there are hundreds of possible causes

if you provide me a diagnostic code we can narrow down the cause of failure

Customer: replied 1 year ago.
If I were to have it diagnosed and get the codes would that be another cost of 28$? Supposedly everything was already fixed and is paid for so money is on a budget.
Expert:  JOHN aka Eauto replied 1 year ago.

nope one fee on here

Customer: replied 1 year ago.
Thank you, hopefully codes my friend will get the car diagnosed and I will let you know the codes something time during the week.
Expert:  JOHN aka Eauto replied 1 year ago.