20 Most Recent 1994 Geo Prizm Questions & Answers

they all started before, all do and did .
but not now, as all do eventually, and for sure not serviced.
car wont start means ZERO.
it must crank first and you never said that.
if it dont crank we diagnosis no crank.
if does crank fast, and will not start we diagnosis that.
cranks but will not start.
check fuses.
check for spark,
watch scotty,


sure, then ask boyfriend to do that.
if him scared? too...then
get car fixed by those are are not.

1994 Geo Prizm | Answered on Apr 25, 2019

I suggest you try one of those instant download manuals.
My brother ( a mechanic) buys when he can't fix some technical issue with the manual at www.reliable-store.com . A lot of mechanics actually do this. Website is very good for this. Must try it !!

1994 Geo Prizm | Answered on Mar 11, 2018

1994 Geo Car Stereo Wiring Schematic
Car Radio Battery Constant 12v+ Wire: White
Car Radio Accessory Switched 12v+ Wire: White/Black
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Yellow
Car Stereo Dimmer Wire: Red/Green
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): White
Left Front Speaker Negative Wire (-): Black/Blue
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): White/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Light Green
Left Rear Speaker Negative Wire (-): Light Green/Black
Right Rear Speaker Positive Wire (+): Gray
Right Rear Speaker Negative Wire (-): Gray/Black

1994 Geo Prizm | Answered on Dec 11, 2017

If it's not idling a bit higher at start-up, the computer has not placed it in cold start mode. Meaning the temperature sending unit/sensor is malfunctioning. Until it warms up, you'll get no performance, rain or shine. Have this temp sensor checked for operation. It may even be just disconnected from the wire.

1994 Geo Prizm | Answered on Nov 27, 2017

Have your temperature sending unit tested for proper activation. Computer will tell the engine to go into cold start mode when cold. If the temp sending unit is faulty, it will not come out of cold start mode and is still dumping excess fuel into the engine causing it to flood with fuel and causing an overly rich condition and it just won't run right like that.

1994 Geo Prizm | Answered on Nov 11, 2017

The fuse was probably removed purposely due to an electrical short in either the air bag system or alarm system. Have it checked professionally. U will have a dangerous air bag on your hands if u leave it be. Speak to the seller 1st, if possible. Maybe they can compensate u.

1994 Geo Prizm | Answered on Nov 02, 2017

From a quick web search, code P0014 supposedly indicates a problem with the timing advance. I would check that the you have the base timing set correctly. The computer has to be in diagnostic mode when you check it, which requires putting a jumper across two wires at the diagnostic plug. Refer to a repair manual for directions on how to do this for your vehicle. The base timing should be 5 degrees before top dead center (BTDC) for cylinder 1 at sea level. Add 1 degree BTDC for each 1000 feet above sea level (if you're 3000 feet above sea level, base timing setting should be 8 degrees BTDC).

1994 Geo Prizm | Answered on Jul 30, 2017

automatic or stick shift car???????
prizm = toyota corolla, (vast parts to be had and books on same)
what are the symptoms, not guessing I need all facts on symptoms.
lets see. 1.6L engine or 1.8L , sorry they are not the SAME>
so what engine is there?

fuses test good?
car drives perfectly, all other electrics run ok , all lighting ok.
bad cluster , well what is bad, tacho, speedo, odometer, gauges, warning lamps. what?
say all things in the cluster that work and not work.
then and only then can any one give good advice.
ill run with only speedo needle bounces,
most 90s cars love to do that, its a fact. (high miles)
if need speedo and dead odometer that is unique.
that is correct more modern cars, all deleted that speedo cable
long long ago and is now a 10cent wire from cluster to ECU.
as did yours.
since the ECU knows speed already why not let it do the job for free. and did.
end history class but, the odd duck cars exist.

first thing to do is learn that the cars ECU has flash codes
you jumper 2 pins on a DLC, and the ECU flashes the CEL lamp with codes, if the code for VSS is set BINGO transmission VSS is dead, or erratic. code 42 tells you VSS is bad. does it flash 42?

The ECU uses speed, to calculate load and fuel better , knowing this facts.

but in your case its 1/2 true, the odd duck, the toyota way in 1994
is to have the VSS sensor drive the cluster
and the cluster speed drives the ECU.
(have book in hand from mitchells online, so can you of you look)

V3 is bad, (or as in all electrics, (laws) wires./loose/bad, there.
VSS means veh. speed sensor
my guess is you will ask where is it, like all here do not wanting
to pop 15bucks to read at mitchels.
At 55 mph:= 48 Hz ( the signal speed on it) square wave.

where it is depends on auto or stickshift
but its FWD and this sensor in on the side with axle ring gear
i guess.
the 3 wire sensor with R-Y, R-G and R-L color wires is a BINGO.


1994 Geo Prizm | Answered on Mar 29, 2017

what engine, again. 2 anon post, i bet. both missing engines(3) ITS A COROLLA IN DRAG
its for smog so. yah, not all cars SAME.
open hood
look up and under , if a usa car, see that BIG EPA vac,
map, covers only smog related vacuum,
see it?

3 engines
3 countries, usa fed,PR of Calif,and canada.
so 9 published mapsad66c891-7a7f-407e-b753-3bdb7e3503ad.png

1994 Geo Prizm | Answered on Feb 14, 2017

the service manual covers that
how , using a screww (speed right a mechine screww is profane wow!!!!)
you never said, up ,down, left or right
did you know, newer cars the L/R can not be set?
that is so shade tree mech dont blind me.
up and down are settable. only on most modern cars usa.
other countries have there own laws.
for example Canada, your laws on lighting are not ours.
some have composite head lamps, no photos of yours
and screws are diffr, locations.

the manual shows hot set car in front of a wall.
distance, level and then shows you there to put the beam.
in all cars books in print, all have this.
the book, some chock, and a screwdriver.

lucky you, the TOyota 94 corolla book is same as is car

why not post what you see wrong first.
was car in a collision?
was car jacked up or lowered by kid owners.
non composite lamps

the corolla shows 2 screws, one for up /down , seen top center
and left right. seen left on RH side and seen right on LH side

this is the 6x12' wall pattern
im not posting all steps, just this. you can rent the book online
just like we must do.
there are 4 patterns, 2high 2 low, RTM read the shop manual
or do like 99.9% do get the car serviced.


1994 Geo Prizm | Answered on Jan 31, 2017

Turn the key to run, but don't start the engine. If the clicking continues, unhook the small wire from the starter. If the clicking stops, you have a short causing power to pulse to the starter control wire, possible bad ignition switch.

1994 Geo Prizm | Answered on Jan 24, 2017

Try checking fuses first and if this is good, check harness to switch that turns them on. If you have power, might be a bad switch. If you have a wiring diagram for the switch and dashboard, try to fun power directly to the circuit that the lights are on. If they come on, your switch is bad or you have an open wire in the circuit.

1994 Geo Prizm | Answered on Dec 06, 2016

What is the question ?

1994 Geo Prizm | Answered on Nov 09, 2016

old post day, so other can learn.
stuck on you mean but NOT KEY OFF right?
the fastback has rear wiper , ill pretend not that...
front wiper stuck on, (most times that is a bad wiper motor the gear box has a bad, SUSTAIN contact switch.
but here, on this car, no computers, no magic logic modules
its just a classic wiper and switch.
the motor has 1,2,3,5,6 wire pins. (not sure why they skipped 4)
1 is ground skip that.
key on , bat goes hot ,12v,
if the switch on the lower left is bad (shorted)
this is the SUSTAIN switch.
pin 3 wiper off is 0v.
if pin 3 is 12vdc wiper off(again key on)
then the switch lower left is shorted inside the gear box.
seen vast like this on man cars.
the main switch not seen here can fail too, but but that will cuase 12v to be on pin 2 or 3 failed, to find if main switch is bad one can only do continuty tests on that switch, because the secret
jumper seen below, when failing there, makes it seem like the main switch is bad but is not,
one can pull the connector and ohm out 3 to 6 , if 0 ohms its a bad gear box, (er, motor assembly) the red upside U below is the main switch in OFF, it jump 3 to 5. like this. and no power to it from main switch.

23459657-flsdwf0rx41rbdaez4cmhnol-2-0.jpg that is the long story on old corolla;s

1994 Geo Prizm | Answered on Oct 23, 2016

7aFE or 4AFE engine.
old post, if you cant figure that out. then post vin, post photo of it.
my guess is it is a V belt, be nice to all that.
and you did say ALT and ALT tilts.
the alt has pivot on the bottom, and the top has built in
belt tension adjuster there,
one gets all that loose, and use it to set tension on the belt
about 10lbs force mid span on belt and 1/2" deflection
almost all V bets set like this for 100 years, even a tin lizzy.

1994 Geo Prizm | Answered on Oct 23, 2016

how to flush. is this a verb question or a product? noun?
how to , or asking where to buy flush kit and flushing compounds.
the only new compounds are jug of orange oil, (safe for the environment all the other ones are off the market )
take it to a shop with flash the system. end short story.
DIY, good luck chuck.
the coolant is toxic as heck, kills people pets, etc.
and must be kept out of sewers and storm drains, for sure.
unless eating toxic fish is ok>?
It can be done, kinda clean,
but is super hard at home.
drain rad, drain block , drain both and catch it all and take it the county reclaim, (for toxics) use a large catch pan, to do that.

now flush it with water hose.
the book says back flush all hoses. and the RAD.
pull all major hoses. this is what is done, for 100 years now.
up to NOW (near)
black flush block and heater core and RAD.
now lets ask why do this at all? if not UGLY.

first off if you keep the system serviced, it will never need a flush.
it will not go to like this.,

not only that, in the USA we took out the sulfur in fuel.
doing that prevents the coolant from ACID attack.
so the coolant never goes ACID now, like 20 years ago.
so no more 2 year, service, due to that FACT.

it's a 5 year service and cap off shows coolant looks great.
on old cars, anything is possible
and flushes must be done, to cure the UGLY ONEs.
seen in the photo above.
end old post answer.

1994 Geo Prizm | Answered on Oct 23, 2016

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