High pitch squeal/ loss of power, louder squeal w/o muffl...

Q: High pitch squeal/ loss of power, louder squeal w/o muffler. Not the cat

asked by on July 19, 2017

I have a 1982 Trans Am. I replaced the cam shaft over the winter and after putting it back together I have been noticing an extremely high pitched squeal that seems to be coming from the rear passenger side of the motor. It does this whenever I get above 2000-2500 RPMs or if I fail to baby the throttle. I seem to have all my horsepower on the low end but once I hit 2000 RPMs she plateaus. I have checked everything I could think of, It's not the belts or pulleys for I have driven her a short distance with both belts removed, still squeals. I only have one vacuum line on it and that runs to the transmission and seems to be leak free and works fine. I have done a compression test to see if it could possibly be a head gasket leak but that all checked out. Carrying great oil pressure, does run a tad hot though although the temp gauge reads that it's fine. If you guys have any ideas that would be awesome! Thanks.

Chevy 350, Edelbrock performer EPS intake, Edelbrock 1406 600 CFM carb, TH350

My car has 100000 miles.
My car has an automatic transmission.

Hi there. We typically focus only on OEM applications and repair tips on this website. You might want to consult with a GM performance specialist or contact the cam manufacturer to ensure you followed the correct installation and break in process or receive their advice on the squeal.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Gas smell

Hi. There was a recall back in 2012 for over 40,000 GM vehicles with a potential fuel leak. The source of the leak is a cracked port on the fuel pump module. There have been confirmed failures of the module...

Car is loud when accelerating

Hello. Based on your description, it does sound like this is an exhaust leak. Because exhaust pipes are made of metal, moisture will cause them to rust. Although it seems like this problem happened out of nowhere, it has actually...

Car engine sounds kind of loud and when I drive faster it gets louder. But the sound Will go away some times .

The noise could be exhaust related although there are other possibilities such as noisy bearings on engine accessories and pulleys. Exhaust systems can fail internally as baffles corrode over time. The poor engine running condition when cold could be caused...

Related articles

How to Buy a Classic Pontiac
Whether you want to buy a classic Pontiac for yourself or as a gift, here are some tips on buying one for a great value.
Understanding the Pontiac Oil-Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Pontiac Oil Life Monitor (OLM) indicates when and what service your car needs.
Pontiac Certified Pre-Owned (CPO) Car Program
If If you’re in the market for a used Pontiac vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...