my speedometer is going nutz,and my heater is not working the hoses are hot,and the heater core is not leaking,and the fan is blowing cold air???

Asked by Dec 27, 2014 at 01:04 AM about the 1990 Geo Prizm 4 Dr STD Sedan

Question type: Maintenance & Repair

going slow the speedo reads 70 mph heater blows cold air,the switch is open,and the
heater core is not leaking??????

2 Answers

9,440

coolant level in the rad is full and burped? this has a cable operated heater valve ? It is where the heater hoses are going through into the car? Lifting the cable off and turning the heater valve by hand one way and then the other does and does not allow the heated coolant to pass to and from. putting some lube on the cable can allow the control to move fully where before, it did not go right fully? is that the kind it has? Then you would reattach the cable. Your speed insert for the trans must have a sensor? and an electronic speedometer ? Some toyo kind had sensors and some could have cables. have you a haynes manual?

1 people found this helpful.
9,440

if the cable sheath it out of range, you can unsnap it, reposition it and snap it back into place. That car is economical and simple to fix for most of its issues that come along. timing belt, seals, waterpump, carb issues, or what have you. It is worth keeping no matter what the issue. the you pull it yard or equivalent in your area has every part at one time or another.

1 people found this helpful.

Your Answer

Prizm

Looking for a Used Prizm in your area?

CarGurus has 35 nationwide Prizm listings and the tools to find you a great deal.

ZIP:

Geo Prizm Experts

  • #1
    CamaroCollector
    Reputation
    300
  • #2
    Tom Demyan
    Reputation
    170
  • #3
    T_S_T
    Reputation
    120
View All

Related Models For Sale

Used Toyota Corolla
566 Great Deals out of 67,649 listings starting at $1,495
Used Geo Metro
10 listings
Used Honda Civic
360 Great Deals out of 52,697 listings starting at $1,200
Used Subaru Legacy
165 Great Deals out of 12,620 listings starting at $1,200

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.