It’s makes a loud noise when accelerating and it stalls a...

It’s makes a loud noise when accelerating and it stalls as well when accelerating or sometimes just sitting in idle Mechanic's Assistant: Is the check [engine](/topics-engine-chevy/) light on? Does the car stall at idle or...

It’s makes a loud noise when accelerating and it stalls as well when accelerating or sometimes just sitting in idle Mechanic's Assistant: Is the check [engine](/topics-engine-chevy/) light on? Does the car stall at idle or when driving? The engine light is on but that’s due to my thermostat housing having an issue. It will stall sometimes in idle but it stalls more when I’m accelerating to higher speeds Mechanic's Assistant: What is the make/model/year of your car? Chevrolet Sonic 2015 Mechanic's Assistant: Anything else we should know to help you? No that’s everything Mechanic's Assistant: OK. Got it. I'm sending you to a secure page to join JustAnswer. While you're filling out that form, I'll tell the Expert about your situation and then connect you two.

Automotive Expert
Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP. Thank you for your reply and that information as this does help me better understand the situation. I’m sorry to hear you are having this problem. I know this can be frustrating. Please give me one moment to type out some info for you. I’ll be right back! A live optional phone call will be automatically offered by JustAnswer, you can accept or if you decide to decline we can continue with text until you feel the live call would be better suited to you. I will try to help you on this here What is the mileage on it now ? Loud noise coming from engine or transsmission or exhayst or you can not tell ? 'you mentioned check engine light on but due to thermostat ,have you scaned it ,what were the fault codes ? **Are you looking for the most possible causes or you are repairing it yourself .** **Please Let Me Know** **Thank You** **Chad Farhat** **ASE Certified Technician**

The mileage is about 64,400. To me it sounds like it's coming from the engine. And I'm sure of the code exactly but when I took it to autozone they said I mostly likely need to replace the thermostat housing but that's not what's causing the noise or stall.
Automotive Expert
ok thank you for info the thermostat will not caudse the idle problem correct at 64k I would want to check plugs and coils and service the transmssion This sound more of transmssion issue where it is gear down and up interminelty and causing the idle or stall or cut off issue the Auto zone code reader Can not read the TCM transsmion module fault code ,yu need a more capable scanner to read them like chevy dealer or repair shop that has chevy specfic scanner and based on them pull up a pin point troubleshoot and have them checl all vacum lines for leaks ,should be next step

Okay thank you!
Automotive Expert
you are very welcome Please Read Below How to Get Back in touch with Me You Can Always Come Back to this Conversation and Ask Me any Follow up Question you May have on this Issue (You can Copy this Link Page & Paste it in your Browser when Ready and it will Open up our Conversation Again) or there should be a Tab on your Screen to Add me As Your Favorite Expert I'm Online Daily from 7 Am Till Late Eastern Time Zone Thank You?Chad Farhat?ASE Certified Technician My goal is to earn a 5 star rating experience. If you have any further questions about this concern, please feel free to reply back to me. If I’m not online at the time, I will respond ASAP when I get back. Thank you for using JustAnswer! You are very Welcome If you need my assistance in the future, Start your Question with (FOR CHAD FARHAT ONLY) or Go to my profile page You can also add me as Favorite expert for any future questions [](//

I had the transmssion replaced about 4 or 5 months ago. So it's crazy that this could be the reason again
Automotive Expert
was it rebuilt or used the transmission ? did they give you warranty or was it only 90 days ? If they did not flush the system and installed another one , the small metal shavings in the lines ,that they did not clean will ruin new or rebuilt transmssion or if it was used ,not uncommon that failed few month later . Take it back and have them check trans again

Im pretty sure it was rebuilt. I was given a 90 day warranty but that time period is up.
Automotive Expert
I figured so,unfortunatley you have to have the transmssion checked again My experience The rebuild trans give 6 month or 6000 miles the 90 days usualy for used ones but possible only gave you 90 days on rebuilt i can not be sure i m sorry but that it what it sound like ,trans issue

Okay thank you so much for your time.

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