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 GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

1988 chev caprice 305 tbi runs ruff, new fuel pump, egr,

Customer Question

1988 chev caprice 305 tbi runs ruff, new fuel pump, egr, spark plugs, wires good, one new injector, new vale job, when you sweeze off return line it runs great, what is the problem.
Submitted: 1 year ago.
Category: Chevy
Expert:  Roy replied 1 year ago.

good morning my name is ***** ***** I will assist

by doing that, you increased the duel pressure. you need to check the actual fuel pressure. you may have a failing fuel pump delivering low pressure. you can rent a tester at a parts store to verify.