How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask BOBBYSS Your Own Question
BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17406
Type Your Chevy Question Here...
BOBBYSS is online now
A new question is answered every 9 seconds

1989 Chevy 1500 350 v8 with tbi backfiring into throttle body.

Customer Question

1989 Chevy 1500 350 v8 with tbi backfiring into throttle body.
JA: Thanks. Can you give me any more details about your issue?
Customer: Happens during acceleration if pressed hard. Babies does ok. However I can tel power is down from normal.
JA: OK got it. Last thing — Chevy Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Chevy
Expert:  BOBBYSS replied 1 year ago.
Hello, my name is***** for the question. Most of the time on this engine it is caused by a stretched out timing chain. As the chain wear this will occur due to the timing being off during acceleration. If can also be a failing ignition control module or the distributor itself, but most of the time if that was it the vehicle would have problems at all speeds. The timing chain needs to be checked for looseness. I hope this helps. Please let me know if you need more help.