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93 Chevy p/u 5.7 tbi. Can start but won’t catch/ stay

93 Chevy p/u 5.7...

93 Chevy p/u 5.7 tbi

Mechanic's Assistant: Are you fixing your 9-3 yourself? What have you tried so far?

Can start but won’t catch/ stay running. New fuel pump/ filter. can hear running If I push pedal down a little will start and can keep running but under 1000 rpm dies. Egr is not stuck open. Do hear rapid clicking from a relay. Not starter. Distributor also replaced

Mechanic's Assistant: How many miles are on the car? Has the car been starting normally?

140,000

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Tried pulling codes, none shown

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Answered in 4 minutes by:
3/9/2018
Canuck Tech
Canuck Tech, Auto Mechanic
Category: Chevy
Satisfied Customers: 704
Experience: 20 years experience in tune up, electrical and general repair
Verified

Have you ever replace the gaskets under the throttle body?

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Customer reply replied 4 months ago
Think I have but will check

OK. Sounds like a vacuum leak to me. Also, with a 25 year old truck, can't rule out the possibility of a skipped timing chain. The clicking relay is a mystery.

Canuck Tech
Canuck Tech, Auto Mechanic
Category: Chevy
Satisfied Customers: 704
Experience: 20 years experience in tune up, electrical and general repair
Verified
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