Question about 1991 Geo Prizm

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91 geo prizm, the air conditioning works great until I turn the key off to park. While the car is still hot the fan will not turn on again until the car cools off. Then everything works great. Do I have some kind of relay problem?

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  • tony_1823 Jul 29, 2009

    Sorry, I ment to say that when I re-started the engine the fan would not go on for the air, heater or vent.

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When the engine is not running the belt is not turning the ac compressor which will not blow cold air unless ac pump is running so engine has to be running

Posted on Jul 29, 2009

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What the Is the dash pot on a 91 geo prizm function it's the part with the black rubber cap


WHERE IS?, WHAT DOES IT DO./?
the dash pot on all suz, this odd is clearly visible above. cnet4re
left, it holds the throttle open for cold start.
it adds extra air, the engine needs to start.
if it dont open, the engine goes rich, and floods .
login to alldata.com for prizm
or study the toyota 91 corolla, same car.

Apr 28, 2015 | Geo Cars & Trucks

1 Answer

Where is engine fan fuse on 1991 geo prizm?


toyota corolla. it is.
but that depend on what engine option
the cooling systems totally vary by engine.
also with or with out air conditioning......???? it too can turn on this fan!
look it up on alldata.com
buy the FSM book
or
post engine, size. better the real engine name off the hood sticker
works BEST.
the 7a was offered in 1992 first. my guess is the fuse is a guess. right? of the 4 possible.?
bad FAN (hot wire it to test it) bad wires, bad 194F switch.
a FAN relay, a fan on the black red wire. relay to fan.
or a stuck open 194F engine coolant temp switch, a voltmeter finds this in 5min work. but depends on if A/C or not.


fuse, there is 30amp fuse link, marked fan
there is

Aug 11, 2014 | 1991 Geo Prizm

1 Answer

91 Geo Prizm radiaor leaking/spraying coolant


It's probably the cap if that's where it's leaking from. They are inexpensive and easy to replace. DO NOT replace it while hot though.

Apr 17, 2014 | Geo Prizm Cars & Trucks

1 Answer

Dash lights not working on my 1991 GEO Prizm


old post.
the dimmer was turned down, dash dimmer
or if parking lamps are out too, the park fuse blown
aka. TAIL fuse.

on newer cars, dont ask, 10x more complex. but CAN DO.

Feb 11, 2014 | 1991 Geo Prizm

1 Answer

91 prizm want crank after hitting deer hit


the deer put a hex on your car. find live deer, and beg for mercy.
ok, tin hat gone

battery cracked, acid leaked out... end of life.
cables to same broken or loose.
a/T gear shift, not in park, and foot brake set, wiggle both.

one can hot wire a starter to test that. its not hard. just a jumper wire.
if hot wire cranks, then the A/T shifter path is broken.

Sep 04, 2013 | 1991 Geo Prizm

1 Answer

Need to know how the fuel rail of air after running out of gas


normally there is a valve that looks like a tire stem on top of engine. you can turn the key on, but not start car, then take something to push in the stem until fuel comes out. you may have to turn key off again and push the stem in again. when you turn on the key it makes the fuel pump, pump fuel up to the engine. you are trying to get the air out.
good luck

Mar 28, 2011 | 1996 Geo Prizm

2 Answers

How do I replace the Timing Belt on my '91 Geo Prizm?


Remove all nessary parts to access cover. Remove cover. Line up the timing makrs before removing old belt if car is still in running condition. Loosen the belt tensioner and remove belt. Install in reverse order making sure to load tension back on belt at the tensioner.

Mar 05, 2010 | 1990 Geo Prizm

3 Answers

95 Geo Prizm Lsi will not start


Where is the starter located so can replace with a new one?

Mar 17, 2009 | 1995 Geo Prizm

1 Answer

Fan runs all the time when car is on


I did the same thing and had the same problem. I believe I replaced a ten amp fuse in the engine compartment and fixed it. Really pissed me off.

Oct 27, 2008 | 1990 Geo Prizm

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