Having problems with your 1990 Chevrolet C1500 ?

Should I bother with replacing burnt valve or just buy new engine

\015 I have put a number of new parts on my truck. I just recently had a mechanic look at it to tell me it is a problem with the ecm so I bought and installed a new one and nothing changed. He was supposed to do a compression test but apparently didn't and still billed me for it. I ran a compression test myself and found that my number 3 & 5 cylinders were only pushing at 40 psi. All of the rest were at 120 psi. How can I know for sure if it is a burnt or stuck valve. And not something different. To be honest I'm tired of throwing money at it. Any input is greatly appreciated.\015 Posted / edited by AnonymousUser on : 18-10-2021

Answers :

I'm sorry you have dumped a boatload of money into the truck. We get that alot from the general public.
You could do a leak test, where you put air pressure into the cylinders when the valves are supposed to be closed. Regardless of the problem, a 23 yr old truck is probably not going to be worth the money to buy a new engine. You may be able to buy a good used engine for a fair price, or have the head pulled for just those cylinders.
Repair Help & Product Troubleshooting for 1990 Chevrolet C1500

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0049 seconds