Question about 1990 Geo Prizm

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1993 geo prizm chaned coil but still when it gets warm has no power engin light comes on and ca turns off then wont start

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  • Geo Master
  • 20,706 Answers

Wont start forever. (parked for 24hrs?) i presume it cranks at full speed?
this is a gen 6 toyota , you can learn best on this car by using
forums for . (true for most Geo's off all kinds)

first off ,never work on any car, unless you now what engine you have (power lost? what engine is this.)
there are two 1.6L and a 1.8L toy engines used on this car.
tune it up yet? every 60k it needs that. did you?
if not turned up (called today "SERVICE POINTS" )

no power cold or hot block.?
if hot ,it fails,only, does it reach and hold 180F coolant temp.or more.?
if not?, halt. the ECU will not work right with a bad thermostat.
when it gets warm, does that mean cold power is good?
and ca (car?) turns off, then wont startca? sorry for big letters that is how it pasted. No font controls.....

my best guess. is you mean,
car runs perfect cold engine, starts ok.?
then i drive, engine warms,and has lost power.?
then, the engine STALLS, and the CEL comes on (all CEL do that, the CEL comes on just before the stall passing 300RPM)
it means the ECU has good Elect power, but the engine is stalled the
tachometer reads zero RPM proof of stall and no forward movement possible. CEL popping on, means Engine stall.

the ca turns off?, my guess is that means car, (engine) turns off, stalls. (

Ok this is a simple post. it's
car hot stalls.
am i correct?
off the wiki, quote (knowing the history facts solves 99% of questions, (how to fix or get parts)!
1990-1992 Geo Prizms were powered by the 4A-FE or optional 4A-GE engine. i think no 1.8L yets
so what engine?
i can not stated history on the 4a engine due to Toy using different
updates on different years. (complex)
Geo Prizm base model (based on Toyota AE92 chassis) 1989-1997
read about the AE92 here
a total of 4.5 million of this generation (AE92) made.
wow, no wonder so many posts here for 92s;
now the forum, just or this car. its the 6th gen car at TOY. not 1st
now the stall question last. (in the most general terms( basics its called at ASE school)
all cars, 1920 to now
the same answers.
1: lost electric power 12v to key EFI parts. (or 6v in1920)
2: lost engine compression, if engine has lash setting now is the time..... yes, 60k service point skipped too.
3: lost spark, test for spark at all 4 spark plugs not just 1.
using a new and gapped proper, test spark plug. repeat 4 times on all cyl.
4a: no fuel? (simple tests ,asks
4b: too much fuel. called flooding, (simple tests. all)

on a car this old, about 1/2 of them the timing belt slipped.
at 60k mile mark, it's a mandatory service, up to 100k its failure time.
when?, depends an 10 facts, none that i care to post now. you can ask.
the above fail points can stall any engines, as can:
stuck open egr, (love to at all stop signs) clean it , its a 50k service point.
stuck close ISC (electric iAC) clean it.
melt solid bricked out CAT converter. easy tests. too rich engine kill it flat as it glowed red hot to the moment of collapse.
this last failure can even prevent the engine from starting , fore ever.

for best help post no starts to the forum above, or?
they have drawings and other magic there.

Posted on Oct 14, 2013


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Related Questions:

1 Answer

Engine turns over but won't start on 1993 geo prism

cranks ok.
but fails to start. sure.
check for spark on all cylinders?
if sparks good, try test fuel.

watch scotty, (simple fixes, no all ways to fail )

ever do a full tuneup this decade or ever.?
fuel filter clean?
is it flooding? sure it may with no spark but, spark is first.

which engine. 1.6 or 1.8

some facts on prizm

the Corolla in snake skins, it is.

Oct 21, 2014 | 1993 Geo Prizm

1 Answer

97 geo prism. Ran fine yesterday. Today went to


wont crank or?

cranks fast, but will not start.?

did you try jump cables start? off a running donor car, AAA style>?

and had to disconn? what does that mean and what was results? if any.

ahhh, to fix the stuck on blinkers? i get it.

not to fix starting...

blinkers on , key off>?


which engine?

the engine type dictates what wiring car has. (partly)

fix the stuck blinkers first. this implies, either ignition switch failure

or gross wiring errors, hacks gone wrong.

the key swtich does turn off blinker power feed.

Sep 23, 2014 | 1997 Geo Prizm

1 Answer

My 93 geo prizm wont start.

If the engine will not crank, a mechanic would check for voltage at the starter, the neutral safety switch or clutch switch, and the key switch.

Aug 17, 2012 | Geo Prizm Cars & Trucks

1 Answer

Check engine light comes on and engine cuts off

some cars have coil packs and when they are faulty do not produce spark

Jun 23, 2012 | 1993 Geo Prizm

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1992 geo prizm - radiator hose broke and replaced, but car won't start now - ideas?

you said it cranks then you said it wont turn over if it wont turn over you might have get the engine to hot and seized the engine please spesifiy if the engine turns over or not

Jun 09, 2012 | 1992 Geo Prizm

1 Answer

My 1993 geo prizm car is turning over but wont start it died while i was driving and it just kinda fizzled out

Please see my tip at . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Oct 11, 2010 | 1993 Geo Prizm

1 Answer

1993 Geo Prizm 1.6L Won't start and has no spark at the spark plugs. Distributor coil seems fine. Got one from junkyard and got same reading from both through meter. Lights come on and windshield wipers...

Can you see if the rotor in distributor is turning whilst engine is cranked? or if the Cam is turning by looking through the oil filler while someone turns the key.
If they aren't turning/revolving then you may unfortunately be suffering a timing chain/belt failure.
Sorry to bear bad tidings if this is the problem.
Paul 'W'

Jan 07, 2009 | 1993 Geo Metro

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