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John, ASE Master Technician
Category: Chevy
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Experience:  ASE Certified Master Technician, ASE Certified Service Consultant, 22 years professional experience
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Chevy venture: lifters..runs rough..it also surges when you accelerate

Customer Question

I'm working on a chevy venture. The hyd valve lifters had to be replaced. Now it runs rough and has a whistling sound it also surges when you accelerate. I have replaced the spark plugs,checked all the lines & fittings, pcv valve,electrial connectors, could it be dirt in the fuel injectors?
Submitted: 4 years ago.
Category: Chevy
Expert:  John replied 4 years ago.
Hello

Dirty injectors could be the problem but I don't think that would explain the whistling noise. I would suspect a vacuum leak first.

What year is this Venture? Engine size? Also, is the check engine light on and do you have any method of reading codes or anything?

John
Customer: replied 4 years ago.
Sorry i thought i had put in the yr my bad! Its a 1999 with a 3.4 V6. I have got a code reader but its not showing any as of now the check engine light is not on. So what would you recomend replace all the vac line boots? and hoses?
Expert:  John replied 4 years ago.
I would start by trying to locate the source of the whistling noise. Do you have a stethoscope? Or a section of rubber hose that you can listen through?
John, ASE Master Technician
Category: Chevy
Satisfied Customers: 567
Experience: ASE Certified Master Technician, ASE Certified Service Consultant, 22 years professional experience
John and 7 other Chevy Specialists are ready to help you
Customer: replied 4 years ago.

I can probably find something! Hey Thanks John I really appreciate the info I didn't know where to go next!

Expert:  John replied 4 years ago.
Let me know what you find. If you run it a while the check engine light may come on.

John

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