Question about 1997 Geo Metro

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1997 go metro after accelerating to pass step on gas no fuel

I accelerate to high speed and on when there is back pressure on engine I have sporadic fuel

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  • Geo Master
  • 20,706 Answers

3 anon posts. can we get 4?
g10 g13BA OR g13BB ENGINE?
MY wild guess, i use tools and not guess but here in net bunny land, cant
1: cat melted
2: fuel pressure low
3:never tuned up in a decade, filters., spark parts
4: map sensor hose bad, clogged,cracked or?

Posted on Feb 12, 2017


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Posted on Jan 02, 2017


Steve Allison

  • 5569 Answers

SOURCE: 2001 geo metro lsi, engine

You didn't describe the nature of the 'noise' which is probably why you haven't received a prior reply.
If it is missing, it might be injector problems but the injectors themselves are not loud enough to be heard over the other engine noise.
Spark plugs, ignition wiring, fuel filters cannot 'make noise.' Any of those can cause the car to run rough but not cause any specific noise unless it is related to the engine misfiring and in that case, it wouldn't just be a source of noise but also inadequate acceleration and a prominent jerking of the car at low RPMs. Carbon buildup is the likely cause although causing any engine to lug (drive in a higher gear at low speeds) can damage bearings in the engine, creating excessive bearing play and a knocking noise under some conditions. Also, a failed exhaust manifold gasket or associated pipes being cracked can really cause a racket.
Without us hearing the noise, it's kind of hard to diagnose it, but the above might give you some guidance.     

Posted on Oct 13, 2008


Vincent G

  • 2361 Answers

SOURCE: I have a 1990 Geo Metro with 3cyl and auto trans.

When was the last transmission fluid ATF and transmission filter change?

The recommended interval is 2 years or 24,000 miles.

Is the ATF color a lite pink color or it's DARK RED?

Any burn smell?

Do the old fashion drop the trans pan and filter change.

DO NOT GO TO shop that use a machine to flush your automatic transmission.


Most Metro automatic can go up to 140,000 miles before needing a rebuilt.

If the ATF is in lite pink and it's not burn then the most likely cause are

1)lock up torque converter is not functioning

2)transmission filter is clogged

Please rate my answer if it's useful to you.



Posted on Dec 11, 2009


Bob Sloan

  • 635 Answers

SOURCE: My 1990 Geo Metro will not accelerate. It idles

The problem I've had with metro's is the pre-cat located in the exhaust manifold itself. If you don't live in California, you don't even need this piece of junk. It overheats the heads and makes it crack, or makes the head gasket leak. Removal is rather easy though. Remove the exhaust manifold and chip that baby out, use a shop vac to remove the pieces. If your model don't have one, it will usually be the one on the exhaust pipe itself. But you already replaced that. Try a short test run with the manifold disconnected and see if acceleration improves to rule this out as a potential problem. Also check your TPS, (Throttle Posotion Switch) with an ohm meter to be sure it hasnt developed any dead spots. Yet another source of trouble seems to be a stuck EGR (Exhaust Gas Recirculator) valve. This will allow too much exhaust to enter your fresh fuel air mixture, decreasing detonation, and slowing acceleration.

Posted on Mar 09, 2010

Testimonial: "Thanks so much! That will give me some new stuff to look at. I really appreciate your help!"


marjorie gomez

  • 351 Answers


it's your valves they are sticking

Posted on Jan 24, 2011



  • 1450 Answers

SOURCE: I have 1994 GEO Prism.

sounds like you got some bad gas as it happened right after you got gas. take a fuel sample and see if it has water in it also if you got some with a high ethanol content it would do this. did you fill up? if it is around half tank or under fill up with some good gas and just run out

Posted on Mar 17, 2011

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98 tahoe with 4 wheel drive, It will shift fine when I dont step on it but when I do it dont. also when I try to pass it seems to drop down more than one gear and revs high r's. If I am going more...

You may have a partially plugged fuel filter or a weak fuel pump causing your problems. When you slowly build up speed to, say, 65 mph, it doesn't take a lot of fuel all at once to get to that speed but if you try to accelerate more quickly to that same speed you essentially run out of fuel which will cause the engine to bog...which then causes the transmission to downshift one or more gears...which then will allow the engine to speed up considerably but you won't really gain all that much speed. Same goes for passing someone: If you ease into it you will be using the fuel that's available more efficiently but if you step on it then you have way more air than fuel entering the engine and it just won't hardly go much faster until the fuel supply catches back up again. The quickest way to figure out what is happening is to have someone test the actual fuel pressure during a test drive to see if the pressure remains normal or falls off as the problem occurs. If the fuel pressure does fall then I always change the fuel filter first and test it again. If the pressure is normal and the problem is gone then you've found the culprit. If the pressure is still low then you most likely have a weak fuel pump. A restricted catalytic converter can also cause similar problems but is much more rare. Good luck, hope this helps!

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How do i chage the fuel injector for a geo metro 1997 LSI?

REMOVAL & INSTALLATION Fig. 1: Removing injectors from fuel rail 84245032.gif
Fig. 2: Make sure injectors rotate freely in cylinder head 84245033.gif
  1. Relieve fuel system pressure and disconnect the negative battery cable.
  2. Remove intake air hose between throttle body and intercooler.
  3. Remove accelerator cable.
  4. Unclamp PCV and fuel return hoses from deliver pipe.
  5. Unclamp injector wiring harness.
  6. Disconnect injector coupler.
  7. Remove cold start injector pipe from delivery pipe.
  8. Remove vacuum hose from pressure regulator.
  9. Remove fuel feed hose from delivery pipe.
  10. Remove pressure regulator from delivery pipe.
  11. Remove delivery pipe with injectors.
  12. Remove injectors from delivery pipe. To install:
  13. Replace injector O-rings and lubricate with fuel. NOTE: Make sure injectors rotate smoothly. If not, probable cause is incorrect installation of O-ring.
  14. Check if insulator is scored or damaged. If it is, replace with new one.
  15. Connect delivery pipe with injectors.
  16. Install pressure regulator to delivery pipe using a new O-ring.
  17. Install fuel feed hose to delivery pipe.
  18. Install vacuum and fuel return hoses to pressure regulator and clamp securely.
  19. Install cold start injector pipe to delivery pipe using new gaskets.
  20. Install injector coupler. Clamp injector wiring harness.
  21. Install PCV hose to cylinder head.
  22. Install throttle position sensor coupler.
  23. Install accelerator cable and adjust free-play.
  24. Install intake air hose to throttle body and intercooler.
  25. Connect the negative battery cable.
  26. Start engine and check for leaks.
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1 Answer

Engine stalls when acceleration

sounds like poss throttle pos sensor prob./ could also be problem w/fuel pump not pumping enough fuel at high speed. poss fuel filter clogging also. have someone check pump pressure.

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