1999 Pontiac Sunfire Strange noises under hood?

CYNC

MEMBER
1999 PONTIAC SUNFIRE
180,000 MILES

Took the car into a shop work done: He did the emergency brake, drums and cleaned the back breaks. (Also had tires replaced the day before)

I asked him if he could look under the hood – reasons carburetor like smell infrequently when going up hill – takes two tries to start the car sometimes – I hear some noise since the water pump got put in about a month ago. He said he could find nothing wrong.

On the way home several noises started.
Video taken earlier today - car was idling
http://www.youtube.com/watch?v=YvwmkoQqmK0

These two videos were taken after one mechanically inclined fellow recommended topping up the powering steering fluid. Then oil change, and after suggestion from another mechanically inclined fellow some power steering fluid removal. Both videos have a shot of gas seening how there is Now a sound when u give it gas.
From inside the car http://www.youtube.com/watch?v=ZQF7eVYNqBM
Under the hood http://www.youtube.com/watch?v=ZflQGyU7cK0

Two mechanically inclined ppl have now pointed to the power steering reservoir however there is no problem with the steering. The noise does seem to be around the power steering reservoir.

I have longer videos but I thought short might be best

1 Reply

CJ MEDEVAC

MECHANIC
11,004 POSTS

GONNA GIVE YOU A FEW IDEAS

YOU PICK THE ORDER TO TRY 'EM

REMOVE THE SERPENTINE BELT---RUN ENGINE FOR ONLY A MINUTE (DON'T WANNA OVERHEAT)---IF THE NOISE STOPS. IT'S A BELT DRIVEN ACCESSORY MAKING THE RACKET

IF IT DOES NOT STOP----IT'S AN ENGINE COMPONENT

THE ONE VIDEO DID NOT CONCENTRATE ON ONE OF THE PULLEYS----AT A GLIMPSE---I GOT THE IMPRESSION THAT MAYBE THE A/C CLUTCH/ COMPRESSOR WAS RATTLING AROUND----POSSIBLY A BAD BEARING OR THE INNER MOST PART OF THE PULLEY (CLUTCH) WAS THE NOISE

YOU MIGHT ALSO CUT THE ENGINE OFF AND SPIN EACH PULLEY BY HAND. AND ALSO THE INNER PART OF THE A/C PULLEY. EVERYTHING SHOULD TURN SMOOTHLY (WITH THE EXCEPTION OF THE CRANKSHAFT PULLEY. IT'S WHAT TURNS THE BELT AND OTHER PULLEYS---IT'S THE BIGGER ONE AT THE BOTTOM)

HERE'S ANOTHER TEST

. BEFORE YOU REMOVE THE BELT

YOU MUST BE VERY CAREFUL NOT TO LEAN OVER AND GET YOU HAIR / HOSE / SLEEVES / FINGERS CAUGHT UP IN THE MOVING PARTS

USING A 2-4 FOOT LONG PIECE OF HEATER OR GARDEN HOSE (YOU CAN ALWAYS TELL YOUR NEIGHBOR, YOU DON'T KNOW WHAT HAPPENED TO HIS HOSE!). STICK ONE END IN YOUR EAR AND THE OTHER END USED AS A STETHOSCOPE. CAREFULLY GET THE END OF THE HOSE NEAR PULLEYS, ETC, AND LISTEN FOR THE RACKET. CAREFUL AROUND THEM, ONE SLIP AND THE HOSE MAY GET WRAPPED UP IN YOUR ENGINE, NOT TO MENTION, SNATCHING ON YOU TOO!

SEND BACK SOME EZ TO FIX RESULTS!

YOUR TURN

THE MEDIC