Question about Geo Prizm

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95 geo prizm 1.6L starts fine when engine cool but when warm it cranks fine but won't fire. I changed plugs, wires, dist cap & rotor & it started fine til got warm again. What might be my issue?

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  • Geo Master
  • 20,706 Answers

Toy 4afe engine.
warm no starts.
so did you check for spark loss , warm? or hot?
if not why not?
if spark is good, did you use test fuel to see if added fuel starts it?
are the the spark plug tips (yes,look) soaking in gas (failed) or dry.?
this is how you diagnois all Gas engines. even a lawn mower.

ever do the 60k lash check on valves?
put in a new timng belt, may be yours slipped, its a 60k service.
do the lash checks at 60K,
if lash is too tight, the gap can go to zero hot,killing compression
Valve clearance (engine cold), (in.):
Intake (0.006) 6 thou
Exhaust (0.014) 14 thou.
why not do the FULL 60k tuneup now. not cutting corners or skips
and win.

is the CEL out , hot driving>
the check engine light.??

Posted on Sep 14, 2014

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Posted on Jan 02, 2017

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  • 4 Answers

SOURCE: 95 Geo metro will not crank no fire

take your timing cover off have a friend look to see if the belt is moving while you crank the engine i would say that the belt is broken

Posted on Dec 16, 2008

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1 Answer

1990 geo storm sohc is running rough. Parts that are new: cap, rotor, plugs wires,plugs, pickup coil, and the ignition module looks brand new. The coil is old, but is still sending spark through all t


the timing is 180 degrees out so ignore where no 1 lead should be and rewire the HT leads to the new position for no1 cylinder. The crank timing mark should be on 10 degrees advanced. Engines are timed off the crank position so forget the cam position.
Or you can start again. Remove no 1 plug and turn the engine over until you feel compression under your finger over the plug hole. Set the timing on the crank to 10 degrees before tdc. Position the distributor so that the point of the star is directly opposite the exciter coil in the distributor. The rotor button should now be facing no 1 cylinder plug lead adjust the HT leads so that they will fire in the 1342 firing order. Start the engine and with a timing light attached to no 1 plug lead adjust the timing mark to specifications by turning the body of the distributor.

Nov 06, 2014 | 1990 Geo Storm

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Replacing distributor


well, to answer this we must know history, even the FSM states this.
its a toy engine so you have all facts online to match that engine.
1: it was wrong all along. timing ?
2: it was ok, time wise and want to just swap it out. ?

ILL shoot for the moon here, go easy way, #2
mark all wires. 1,2,3,4 (1 is water pump side, 4 is tranny side.0
mark cap terms too.
now transfer marks from old cap diz to new.
now remove cap on old
put crank at TDC such that #1 cap tower is at #1 wire.
this is called TDC #1 firing. (crank pulley marks are as FSM shows
then remove dizzy.
drop in new dizzy such that rotor still aligns with #1 cap tower term marked above.
clamp down dizzy
now do fine timing set running per FSM.

all this is at alldata.com and for if #1 is true, all wrong to start.

the above works for all dizzy cars made, mostly.

all this and more here.
vast info, all free too.
http://w ww.toyotanation.com/forum/16-archived-corolla-threads/9068-geo-prizm-toyota-corolla.html

Oct 22, 2013 | 1991 Geo Prizm

1 Answer

1986 350 engine changed timing chain won't start on #1 but starts and runs great if i set roder facing #6 dist cap is there two firing orders for this engine ?


THERE IS ONLY ONE FIRING ORDER FOR THIS IT HAS BEEN THE SAME SINCE 1960??? 18436572 WITH NO1 IF YOU ARE STANDING STRAIGHT IN FRONT OF THE ENGINE YOUR HEI DIST SHOULD HAVE 2 PRONGS STRAIGHT ACCROSS FACING YOU IF IT IS NOT YOU MUST PULL THE DIST, ROTATE THE ENGINE AROUND TO COMPRESSION STROKE, VERIFY THIS BY THE POINTER ON THE TIMING COVER SET IT TO 0 WITH THE PISTON IN NO1 CYLINDER UP IF NO 1 PISTON IS NOT UP FULLY EXTENDED IN THE SPARK PLUG HOLE YOU ARE NOT AT NO 1
IF THE PISTON IS FULLY EXTENDED AND YOU HEARD A AIR SOUND THEN YOU ARE RIGHT, PLACE THE DIST BACK IN TURN THE ROTOR 1 TO 2 NOTCHES BACK TO THE RIGHT AND HAVE SOME ONE CRANK THE ENGINE IN SPURTS, IT SHOULD DROP IN, THEN REPEAT THE PROCESS TO VERIFY YOU ARE ACTUALLY ON NO1 THEN BEGIN THE WIRING

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5 Answers

Truck wont crank. we have put new distributor cap, rotor button, coil pack, plugs, wires, and fuel pump. we also checked our firing order.


you said you repl dist cap that means you don't have a crank sensor you have electronic ing module. remove your elec ing module have it tested most auto parts stores could test your module, or check your coil at the neg terminal. should have power. if not you lost your primary volt from your batt.your secondary power is coming from your electronic ing module from the module to the pos terminal on the coil, when the eng cranks,from the coil to the dist cap , from the dist cap center to the rotor then out to the plugs,this all happen pervided the timing belt or timing chain is ok. the cumbustion chainber needs 3 things , thats fuel, air, and spark.

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Engine code 14 ignition signal and code 26 rich fuel mixture detected on a 94 geo prizm. i checked spark plugs, wires, replaced distributor cap, and fuel filter. where do i go from here?


I would start by replacing the primary ignition system,cap,rotors,wires,you can't just check these items they could be defective where you are unable to see.a rich condition can be caused by a mis fire from a wire,a bad tps,or 02 sensor,but I would always start with the basics and not overlook them,if you need any more help let me know.








TIM.................

Dec 02, 2010 | 1994 Geo Prizm

1 Answer

Car stalls but starts back up


It had a new cap and rotar and plug wires put on from the people I bought the car from .People told me it started having this problem after they installed the new parts they bought at Autozone so I went and purchased the factory wires ,and dist.cap from a reputable parts store and replaced them and bingo ,no more problem.When buying ignition parts do not go cheap and buy from Autozone.

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1996 GEO Prizm won't start when wet. It the


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95 Geo metro will not crank no fire


take your timing cover off have a friend look to see if the belt is moving while you crank the engine i would say that the belt is broken

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