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View Full Version : 2004 Pontiac Sunfire making weird noise at startup!


ITstudent2006
Dec 7, 2010, 06:46 AM
Since it's gotten cold my work car makes a high pitched screetch when I start it but then it's all good!

Any ideas?

TxGreaseMonkey
Dec 7, 2010, 07:07 AM
. Ensure the belts are properly adjusted. They may be straining the power steering/alternator bearings too much. If the serpentine belt has over 80,000 miles on it, get it replaced.

. Power steering pump. Try partially changing the power steering fluid. I use a pump from a bottle of Curel hand lotion. Do it again a few weeks later. I recommend full synthetic power steering fluid, especially for cold winter mornings:

AMSOIL Synthetic Power Steering Fluid (http://www.amsoil.com/catalog.aspx?code=PSFCN-EA)

Don't overfill the reservoir--note the fill marks on the dipstick. If the problem persists, the pump may need replacing.

You want to also use full synthetic engine oil:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-12.html#post2162069

Oil pressure builds 7 times faster in cold weather.