Why does my truck run funny once in a while

Asked by Sep 06, 2015 at 06:29 PM about the 2000 Chevrolet Suburban LS 2500 4WD

Question type: Maintenance & Repair

I bought a 2000 Chevy suburban 2500 last year. Got full tune up on it battery.
It's
my secondary car so I don't drive it as much. But when I do it makes a weird
rubbing sound like a helicopter is taking off inside the truck. I noticed it when I
got stuck in traffic a few times.  When I brought it to the dealer they said fan
clutch. Got that fixed and a week later same sound. Brought it back, they had
it
for a week and said sorry we can't find anything. I drove it for a few days to
see
if I could make it happen again and nothing happened. Then just the other
day it
happened for a few min.  I have no clue. Any ideas?

1 Answer

42,595

I do believe they are right, when in slow moving traffic your motor is heating up. The fan clutch works on temperature to help keep the motor cool, kicking the fan on a 1 to 1 ratio, other wise the fan is just free wheeling to help the motor on drag of the pulley system, witch decreases gas mileage.

Your Answer

Add photo

Related Questions

Search Chevrolet Suburban Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Suburban Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 880
#2 Eric Fritz
Eric Fritz
Reputation 850
#3 Neal Turner
Neal Turner
Reputation 750
View All

Related Models For Sale

Used GMC Yukon XL
339 Great Deals out of 12,005 listings starting at $2,400
Used Chevrolet Tahoe
858 Great Deals out of 27,927 listings starting at $1,700
Used GMC Yukon
547 Great Deals out of 16,885 listings starting at $2,495
Used Ford Expedition
481 Great Deals out of 24,640 listings starting at $1,500
Used Cadillac Escalade
298 Great Deals out of 10,229 listings starting at $1,900
Used Chevrolet Silverado 1500
2,584 Great Deals out of 151,149 listings starting at $1,500
Used Ford F-150
3,035 Great Deals out of 207,247 listings starting at $1,990
Used Lincoln Navigator
122 Great Deals out of 5,979 listings starting at $1,995
Used Toyota Sequoia
165 Great Deals out of 5,987 listings starting at $2,995
Used Chevrolet Silverado 2500HD
394 Great Deals out of 27,146 listings starting at $2,998
Used Ford Excursion
18 Great Deals out of 797 listings starting at $2,500
Used GMC Suburban
173 listings starting at $1,495
Used Ford Explorer
1,114 Great Deals out of 71,365 listings starting at $799

Used Cars For Sale

2013 Chevrolet Suburban LS 2500 4WD For Sale
2 listings starting at $36,995