Question about 1994 Geo Metro

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94 geo metro idle air control valve - 1994 Geo Metro

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: 1991 geo metro rough idle

i have no idea about an idle up solenoid relay but i had the same problem.. there is a hex screw on the motor that takes a very small allen wrench head where you can adjust the idle from there. its near the throttle body

Posted on Aug 16, 2008

emissionwiz
  • 75051 Answers

SOURCE: When i start my 1997 Geo Metro, it often sputters

Try this
Here are the most common causes of surges, stalls at stops, low erratic idle speed, rough idle and engine hesitation, it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Apr 03, 2009

  • 18 Answers

SOURCE: transmission fluid for 94 geo metro

An automatic transmission on a 94 Geo Metro takes Dexron II (or higher- ie Dexron III etc) type transmission fluid only.

Posted on Jul 14, 2009

  • 42 Answers

SOURCE: 94 geo metro won't start in the cold but runs fine

Sounds like a bad temp sensor, it has several, you need a Clymers or Chilton's repair manual, good investment if you do your own repairs! One sensor is next to the water neck just below the distributor . other is above alternator on the intake. Also there is one on the air cleaner housing that the black connector plugs to. It's late or I would look up the resistance readings for those sensors. Do you have a check engine light on? You can jump the diagnostic plug and get a code to tell you what the ECU is seeing.

Posted on Oct 11, 2009

ClefCruiser
  • 7 Answers

SOURCE: 1992 geo metro 1.0 engine

You might also check the single injector, had a friend's that the fuel pressure regulator had been messed with and was over-pressurizing the injector, that weakened the injector allowing it to flood at idle and also when cut off (the injector was leaking)

Posted on Apr 29, 2010

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Motor runs at 4000 rmp when started


1995 Geo Metro. COLD start or HOT started or BOTH?
Does it ever idle down to 800 HOT? (engine temp)>?

Aka:
Geo Metro (later re-branded the Chevrolet Metro), Pontiac Firefly, and Suzuki Swift
which engine, what country???
I will post for USA only !!!!
Auto or stick tranny???
the USA 1995 was the last car to use TBI injection (throttle body)
the LSI option, then had a 4 cylinder. in 1.3Liters.
and works totally differ. than any 1.0L
answsering for 1.0L

Have you inserted the Diagnostic jumper wire and looked at the
FLASH codes yet?
choke? on 95? what country is this, ours are not carbs. in 1995.
so post country. ours are all EFI in USA.
3 cylinder? 1 liter? or which engine/?
on any USA Metro, 1L , when first started, it has 2 valves. to control IDLE, (cold , is iAC) hot is ISC, The cold start valve opens farther the colder it is (how cold was it). but usually is limited to about 2000 rpm
max.
this engine, TBI, uses a MAP to control fuel mixtures, and
any air leaks (aka; vacuum leaks) what so ever, will cause too fast idle.
so on MAP cars, you get to find out what is leaking AIR.
1995 has the new better , idle control speed motor, (ISC)
this can be stuck open.
that new TPS, did you do the calibration correctly?
it must set right. or idle will never be controlled.
finding the cause, takes hard work, and hands on testing
A/C fast idle broken
A/T transmission fast idle, device, broken.
Air leaks (add huge list of possibles and cracked hoses here)
Throttle stuck
ISC or IAC bad.
very hands on to find this, done many.
TPS on indexed corrrectly or not calibrated.

Jan 28, 2014 | 1995 Geo Metro

1 Answer

94 geo metro, cleaned egr valve and replaced gasket..still missing and losing power on acceleration any ideas?


O2 Sensors with over 100,000 miles on them

Dirty MAF Sensor

Old Spark Plugs

Ignition Problems

Blocked gas filter or blocked exhaust converter

Exhaust system leaks before converter

TPS Sensor

Sep 20, 2011 | 1995 Geo Metro

2 Answers

My 94 geo metro runs very rough and has


you should check a throttle body valve or purge valve, choke valve

Feb 14, 2010 | 1994 Geo Metro

1 Answer

Transmission fluid for 94 geo metro


An automatic transmission on a 94 Geo Metro takes Dexron II (or higher- ie Dexron III etc) type transmission fluid only.

Jun 14, 2009 | 1994 Geo Metro

2 Answers

What should i set the timing at for my 94 geo metro i have a timing light should i set it at 0?


Unless you have replaced the hood or the sticker has been removed, there should be a label on the inside of your hood that lists the correct timing.

Make sure you short the two appropriate wires in the 'test plug' before setting the timing. It's on the drivers side firewall under the hood. The idle on 94 Metros is automatically controlled so you don't have to worry about setting the idle before adjusting the timing. My 94 automatic metro says 5BTC.

May 18, 2009 | 1994 Geo Metro

1 Answer

1994 Metro Geo rough idling and lagging up hills


dunno if it'll fix it- but check your pcv valve - 5$ for a new one - also check your egr valve- should be able to move depress it with your finger- if not, carb cleaner is safe to use to clean it up- remove it and clean it. this should help the idle

Apr 17, 2009 | 1994 Geo Metro

1 Answer

When i start my 1997 Geo Metro, it often sputters


Try this
Here are the most common causes of surges, stalls at stops, low erratic idle speed, rough idle and engine hesitation, it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Apr 03, 2009 | 1997 Geo Metro

2 Answers

Trouble Code description


Code 46 is indeed the trouble code for the Idle Speed Controller which is that big black box thingy on your throttle body. A lot of Chilton-type manual books omit that code because the ISC isn't found on pre 94 Metros. The ISC is a computer controlled auto-adjuster for the engine idle.

An important note: code 46 is often caused by misadjusted distributor timing. As you probably know, timing affects the idle, and if improper timing moves the idle beyond the ISC's adjustment range, the check engine light will come on and diagnostics will return code 46.

Jul 11, 2008 | 1994 Geo Metro

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