Supercharger

Asked by Sep 15, 2016 at 04:03 AM about the 1993 Pontiac Bonneville 4 Dr SSEi Supercharged Sedan

Question type: Maintenance & Repair

I got my Bonneville from someone who was sending it to the scrap yard. It
runs and drives great. The body is straight, no rust, good car. It only has
two issues. The "Driver information" screen isn't lit. At night it comes on but
is very dim. How hard is that to fix?
Also the supercharger sounds like it's eating it's own guts at an idle. Take
the idle up to about 1200 and it goes away (as far as MY ears can tell.)
ANy ideas? Some people say it's just cavitation and nothing to worry about,
probably from bad gas. I know nothing about forced induction. So any help
is great!

1 Answer

115

YOUR DIS MAY HAVE A LOOSE OR DIRTY CONNECTION IF NOT THAT MAYBE A SALVAGE PART WILL BE RELATIVELY INEXPENSIVE. SUPER-CHARGER MAY HAVE A BAD BEARING OR TWO. AT IDLE YOU CAN HEAR THE VANES HITTING EACH OTHER. THIS ALSO IS A SALVAGE PART. WHEN THE VANES HIT EACH OTHER THEY REMOVE METAL THAT IS PART OF THE SEAL IF IT DOESN'T SEAL IT WON'T BUILD PRESSURE. CAVITATION IS SOMETHING THAT OCCURS IN LIQUIDS. AS IN A OUTBOARD PROPELLER, AS IT SPINS THROUGH THE WATER AT HIGH SPEEDS IT CREATES WHAT LOOK LIKE BUBBLES. THESE ARE ACTUALLY LITTLE VACUUMS OR CAVITIES, HENCE CAVITATION. IF A SUPER CHARGER WERE ABLE TO CREATE THESE VACUUMS IN AIR YOU STILL WOULD NOT BE ABLE TO HEAR THEM THROUGH THE MASS OF THE SUPER-CHARGER HOUSING. FURTHERMORE IT WOULD BECOME MUCH LOUDER AS YOU INCREASED THE RPM OF THE SUPER-CHARGER.

Your Answer

Add photo

Related Questions

Search Pontiac Bonneville Questions

Pontiac Bonneville Experts

#1 ticklemedaly
ticklemedaly
Reputation 380
#2 dandyoun
dandyoun
Reputation 360
#3 Js08016
Js08016
Reputation 350
View All

Related Models For Sale

Used Pontiac Grand Prix
30 Great Deals out of 2,871 listings starting at $900
Used Chevrolet Impala
521 Great Deals out of 31,726 listings starting at $1,450
Used Buick Regal
115 Great Deals out of 10,863 listings starting at $3,995
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Buick LeSabre
14 Great Deals out of 1,924 listings starting at $995
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Pontiac Firebird
12 Great Deals out of 724 listings starting at $3,990
Used Nissan Altima
1,027 Great Deals out of 81,562 listings starting at $1,200

Used Cars For Sale

2005 Pontiac Bonneville For Sale
70 listings starting at $2,995
2004 Pontiac Bonneville For Sale
75 listings starting at $1,799
2003 Pontiac Bonneville For Sale
85 listings starting at $2,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.