Question about 1990 Geo Storm

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1990 geo storm wont start, no fuel, no stored codes.

1990 geo storm wont start, no stored codes. replaced fuel pump, checked fuel suppy and pressure but still nothing even with pump relay jumped. It will run when carb cleaner is sprayed into the intake? Any ideas??

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  • GQ-ROD May 11, 2010

    You are not getting fuel into the cylinders Or you are not getting spark at the plugs. Check that the fuel injectors are firing with a fuel injector test light or multi meter. Also check that the plugs are firing.

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Can you hear the fuel pump when you turn the ignition key to start position??( you should hear it start then stop after few sec.) If not, this could be the fuel pump fuse,some bad contact in the wiring of the fuel pump or the worst case the computer.but if you do,unplug your main fuel line to the injector turn the switch to start position again to see if you have some fuel coming out.if not this could be the fuel filter or the fuel pressure switch! hope this will help you...lipak!..

Posted on May 05, 2010

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Posted on Jan 02, 2017

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4 Answers

How do I know if my fuel pump or fuel filter is bad I have a 1990 Geo Storm when I plugged it it was running fine I'll let it sit for 2 years I put new plugs in it new wires and that's pretty much it I'll...


Carry to mechanic who can check fuel pump output. Some fuel pumps work ok when idling but don't put out enough pressure when trying to accelerate. Pressure is the key. They can check it.

Mar 02, 2015 | 1990 Geo Storm

1 Answer

What is the fuel pump pressure for a 1990 geo storm 2+2


storm what engine? 4xe1 or 4xf1 SOHC or DOHC (twin cam)?
its really an Isuzu Impulse in snack skins (badges)
does test fuel run engine? that is step 2.
if the cam timing belt slips, the DOHC goes boom.
the SOHC engine belt slip,cause no starts, due to huge
compression drop, and fails the test fuel tests.

SOHC, keyon, 30-46PSI
same for both. engines
but as all mPI engines it drop running at idle.
and rises at WOT> (FPR actions most work right running) ask
but its no running
ever do a 60,000 interval tuneup with a new cam belt.
no?

Feb 12, 2015 | 1990 Geo Storm

1 Answer

What will cause a 1990 geo storm sohc to run rough or not start? Changed, plugs, wires,cap, rotor?


Except for the ignition coil, that about takes care of the secondary ignition system. You should check to see if you have a good strong blue spark at one of the spark plug wires. If no spark, check the coil and the crank position sensor for one place to start, also the ignition control module. If you do have spark, the ignition should be good, and then you could concentrate elsewhere.
If there is a schrader valve on top of the engine-a fuel pressure test port-it would be easy to check fuel pressure. Autozone and others loan a fuel pressure tester. Possibly, a 1990 Storm may require a temporary "tee fitting" in the fuel line somewhere to test pressure. Look for the test port- it may have a cap that unscrews. It would be located in the fuel rail or the line to the injectors.

Beyond that, other problems could be dirty injectors, a malfunctioning EGR valve, a large intake manifold gasket leak, or worst case, a mechanical internal problem. If it gets to that, perform a compression test. If you have good compression in all cylinders, it should be good internally.

Nov 04, 2014 | 1990 Geo Storm

1 Answer

Geo storm wont start after putting in new battery,altornatior,plugs and wires,and cap and rotor


storms, those are very rare. and Isuzu is very dead here.USA.
which size engine?
wont crank/?
or cranks ok, but wont start.
its old.
1:check compression, yet, over 150PSI (w.o.t)
2: check for spark at all 4 cylinders?
3: try test fuel if spark is good (spray fuel)

watch scotty
http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp

tell us how far you get.......
btw , it really a:
manufactured by Isuzu and sold in the United States by General Motors from 1990 through 1993 as part of GM's Geo line

btw2
1.6L DOHC (Storm) Interference
both DOHC engins are interfernance
if you skip belt changes, the valve bend and bye-bye engine.
BOOM
and a new motor is more that car is worth.

Feb 18, 2014 | 1992 Geo Storm

2 Answers

OUR 1990 GEO STORM JUST QUIT RUNNINBG. WE HIT ON THE FUEL LINE UNDER THE CAR AND IT KICKED THE FUEL PUMP ON AND WAS ABLE TO DRIVE IT ABOUT 2 MILES BEFORE SHUTTING OFF. IT REVED VERY HIGH. IS THERE A RESET...


sorry no reset switch. Sometimes like you said you can tap on the fuel pump to engage it (I'd recommend a rubber mallet) but you need a new fuel pump asap.

Apr 23, 2011 | 1990 Geo Storm

1 Answer

1990 geo storm 2x2, no horsepower upon accelration, change fuel


Try a set of plugs and wires,if not this then you may have a plugged converter.

Dec 14, 2009 | 1990 Geo Storm

1 Answer

Car starting


There are several problems that can cause this behavior, Is it cold where you are? If so the geo's have a known issue with starting in cold weather.

If not then here is a list of possible issues

1.) Cracked or damaged ignition coil and/or primary wire.
2.) Fuel Pump.
3.) Clogged fuel injectors (Engine will run rough when it does run if this is the case)
4.) Badly worn spark plugs, Spark Plug wires, Distributor cap and/or rotor.

*** WARNING *** Your ignition system contains dangerous voltage levels that could seriously injure or kill anyone coming into contact with the spark. Be sure to use insulated pliers or a spark tester and follow the instructions. Failure to do so could cause serious injury or death.

Tests to confirm:
1.) Purchase a spark tester from your local auto parts store, Connect a spark plug wire to the tester and connect the tester as described in its documentation, Have a friend crank your engine and watch for a bright blue spark, The spark should happen frequently and with a rythm, If it seems to skip alot proceed to test #4. If you dont see a spark at all the ignition coil is to blame, Even if you do see a spark, It should be bright blue and clearly visible in daylight, If it is then your ignition coil is doing its job.

2.) Get a pressure gague and hook it up to the fuel line, Turn the key off and on several times (Dont start the engine) if the pressure doesn't rise when the key is turned to on, Your fuel pump may be faulty, Even if it does rise it should reach 15 PSI, If it doesnt then replace the fuel pump and fuel pressure regulator.
3.) You would have to remove the injectors. I recommend you have a mechanic check to see if this is the problem.
4.) Remove the distributor cap and check the rotor for carbon tracking (A black line on the end that touches the cap) if you see that, Replace the cap and rotor and try test #1 again. If the rotor and cap are in good condition, reinstall them.

Jan 20, 2009 | 1992 Geo Storm

2 Answers

1991 geo storm,sohc


check ur feul rail 4 leaks with ac runn,n it will look like antifreeze.go,n out 2 replace my hope that helps

Jun 18, 2008 | 1991 Geo Storm

1 Answer

Fuel pump installation 1990 geo gsi storm


the fuel pump is located inside the fuel tank. drop the fuel tank and unscrew the top of the fuel pump and replace the fuel pump

Jun 14, 2008 | 1990 Geo Storm

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