heater core cleaning

Asked by Jan 13, 2016 at 07:56 PM about the 1999 Pontiac Grand Prix

Question type: Maintenance & Repair

1999 pont grand prix blower motor comes on
whenever i turn it on but no air presure. Nothing my
question is does the heater core have air flow thru
the body of fins and can that plug up ? How to
clean or what else could it be

2 Answers

22,725

maybe you have a nest of mice livin' up there- just sayin'

1 of 1 people found this helpful.
68,725

If critters have not moved in, check the ductwork under the dash. Something may have come loose and the air is not being directed to where it should be. One other possibility is the air conditioning may be stuck on a freezing up the cooling coil under the dash. This will usually be noticed as an airflow drop off to nothing though. Look for frost on the air-conditioning system hoses under the hood. HTH. - Jim

Your Answer

Add photo

Related Questions

  • heater core cleaning 2 answers

    1999 pont grand prix blower motor comes on whenever i turn it on but no air presure. Nothing my question is does the heater core have air flow thru the body of fins and can that plug up ? How to c...

    1999 Pontiac Grand Prix

    -

    Maintenance & Repair

  • Heater core 2 answers

    where is the heater core located on a 1997 Pontiac grand prix

    1997 Pontiac Grand Prix 2 Dr GT Coupe

    -

    Maintenance & Repair

  • Heater core Problems? 2 answers

    I have a 2002 pantiac grand prix. Currently it has no heat. the car reads the temp just fine so I don't think its the thermometer. The heater core hoses are both warm but not hot. I wasn't sure what...

    2002 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • how to replace heater core on a 2004 grand prix 2 answers

    There is coolant leaking inside the car coming from the area of the heater core.

    2004 Pontiac Grand Prix GT2

    -

    Maintenance & Repair

  • No heat coming from heater core 1 answer

    My Grand Prix GTP doesn't seem to want to heat up. There is no heat coming into the passenger cabin from the heater core and my temp gauge never gets up to the 1/4 mark. I've changed the thermostat,...

    2002 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,350
#2 Tom Demyan
Tom Demyan
Reputation 2,950
#3 munron
munron
Reputation 2,290
View All

Related Models For Sale

Used Chevrolet Impala
63 Great Deals out of 915 listings starting at $799
Used Pontiac Bonneville
8 listings starting at $5,950
Used Ford Mustang
9 Great Deals out of 1,263 listings starting at $1,000
Used Chevrolet Monte Carlo
15 listings starting at $6,995
Used Pontiac Grand Am
34 listings starting at $3,960
Used Chevrolet Camaro
766 listings starting at $2,500
Used Chevrolet Malibu
118 Great Deals out of 2,325 listings starting at $2,966
Used Nissan Maxima
35 Great Deals out of 327 listings starting at $1,700
Used Nissan Altima
61 Great Deals out of 1,293 listings starting at $1,995

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
5 Great Deals out of 22 listings starting at $2,495
2007 Pontiac Grand Prix For Sale
10 listings starting at $4,979
2006 Pontiac Grand Prix For Sale
8 listings starting at $4,995
2005 Pontiac Grand Prix For Sale
11 listings starting at $2,990

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.