- #134 of 208
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Re: My 1997 Geo Metro LSI that dies on the freeway when you slow down [masterb]
by spades77355
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Mar 04, 2009 (10:39 am)
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Replying to: masterb (Mar 20, 2008 8:41 am)
I dont know if you will see this, but did you ever solve the problem with your Geo? I am having the same problem.
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- #135 of 208
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Re: 2000 Hatchback Sputter-And-Zoom Problem [metroguy]
by zenden
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Mar 04, 2009 (8:47 pm)
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Replying to: metroguy (Mar 03, 2009 6:00 pm)
I checked for TSB’s for you, there are none for that that symptom. The only thing that I can think of that would cause this is the spark plug boot must be leaking at the top and is letting air get in and condensing. I would try OEM wires for that specific vehicle this should fix the problem. Most likely you live in an aria that has a lot of moisture at times and need a set of factory OEM wires; they can be purchased at any auto parts store for about 25% more then the cheep ones. From my knowledge of cars over 40 years I have seen some strange things, one of witch is that aluminum engines and or aluminum parts on engines that have pockets of trapped air, at times have a tendency to condensate moisture and cause problems; as in, under the valve cover! I am not sure why this happens at times with aluminum. It is possible that your engine temperature is to low and needs a thermostat; or for the most part you only use this car for short runs in turn the engine never reaches a high enough temp long enough to burn off the accumulated moisture and the trouble compounds its self. The same thing can happen to an exhaust system on a car. Old people sometimes only get 500 miles out of a new muffler with in 2 years it rusts and falls off of the car, and they cant figure out why. Also by the way! (if you do not know this already) and you suspect that your engines thermostat is not bringing your engine up to normal operating temperature; then you should replace it immediately. I hope that some of this info will help. Zen..
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- #136 of 208
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Re: My 1997 Geo Metro LSI that dies on the freeway when you slow down [spades77355]
by zenden
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Mar 04, 2009 (9:21 pm)
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Replying to: spades77355 (Mar 04, 2009 10:39 am)
I think that it is one of two things T.P.S. has a dead spot in it. Or the fuel pressure regulator is bad. You did not state what engine size that you have so I can not give to you the Specs. on your fuel pressure so that you can test it. The fuel pressure regulator runs off of vacuum when you hit the gas with your foot the throttle body opens up, in turn you lose vacuum and it builds more fuel pressure! When you let off the gas, you build vacuum, but lose fuel pressure because it is not needed as much. Do a fuel pressure test running at an idle only, I think that you will find the problem is there. If you have to replace that regulator make sure that the new one tests out within Specs. of its upper limits; because if it goes over, it can make that GEO never give that good MPG again, and know one will ever know why! Zenden
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- #137 of 208
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Re: 2000 Hatchback Sputter-And-Zoom Problem [zenden]
by metroguy
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Mar 06, 2009 (6:20 pm)
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Replying to: zenden (Mar 04, 2009 8:47 pm)
Thanks for the input on the possible cause of condensation on the spark plug boots and for checking for TSB's. I will replace the plug wires and see what happens. The weather will probably stay warm from now on, so I may not be able to fully determine if the new wires truly solve the problem or not, but at 130K, it was about due for some new wires anyway. I know aluminum conducts heat much better than steel or cast iron, so that might have something to do the tendency to promote condensation, but this one has really been a puzzler...
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- #138 of 208
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91 geo metro,2dr,3cyl,eng. problem?
by popeole
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Mar 07, 2009 (6:54 am)
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Every time I step on the gas or release the gas(while driving) just a hair she bucks and at a fresh stop she will rev. then drop and do this for a minute or two till she finds herself(has a high idle throughout driving). The clutch grabs when it's almost all the way out but has been like that for two years(doesn't seem to slip). No problems on accel. or decel. Anyone able to help?, Thanks.
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- #139 of 208
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Re: 91 geo metro,2dr,3cyl,eng. problem? [popeole]
by zenden
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Mar 07, 2009 (10:12 am)
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Replying to: popeole (Mar 07, 2009 6:54 am)
Most likely cause in this order.
Check For: 1st, Vacuum leeks (all hoses) first listen closely for a vacuum leek near the intake, ( to test,Pinch hoses with pliers to block off air flow; then listen for the engin to slow down to an idle; because air leaks of any type will make the idle high) And maybe replace or checkthe PCV valve it is only $3.00
2. Idle speed control solenoid (ISC) located in, Upper rear of throttle body it has 2 wires clipped to it, most likely, a white and blue wire, and a red and white one. There is a good chance that the ISC is bad if there were no bad vacuum hoses found.
. 3. EGR Valve may not be holding, take it off and try to blow through it, if you can, then clean it out by chipping away the carbon until it seals; if you cant get it to seal then buy a new one.
I hope that this helps you to get started in the right direction! I have limited time to help, so off to work I go! Zenden
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- #140 of 208
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93 Geo Metro won't start cold
by bobkat2
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Mar 12, 2009 (1:07 pm)
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When cold car cranks and cranks but won't start. Starts fine after being driven for a while. Has new plugs, cap, rotor and wires. If I take wire off solenoid on the right side of the throttle body (facing the engine) it will eventually start and chug and chug and finally run OK. I have to immediately plug the wire back in to keep it running. Won't idle, have to constantly feather throttle to keep it running. Runs fine when warmed up. Gets very poor mileage seems to be flooding.
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- #141 of 208
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Re: 93 Geo Metro won't start cold [bobkat2]
by zenden
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Mar 12, 2009 (4:56 pm)
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Replying to: bobkat2 (Mar 12, 2009 1:07 pm)
What year and what eng. is it; AT or manual Trans? And if you can tell me how many wires and what colors are the wires on that clip that are going to that actuator on the throttle body, they may have stripes on them, I need the colors of the stripes also. I will answer ASAP; tonight or by 1 PM Friday then going out of town.
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- #142 of 208
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Re: 93 Geo Metro won't start cold [zenden]
by bobkat2
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Mar 12, 2009 (8:24 pm)
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Replying to: zenden (Mar 12, 2009 4:56 pm)
thanks for the help. There are two wires. One is green with a black stripe and the other is white with a gray stripe. The unit is beneath the air cleaner and mounts horizontally into the throttle body.
The vehicle is a 1993 with a 1.0 liter 3 cylinder engine. It has a 5 sp. standard transmission.
It problem happened before a few months ago and if I let the car sit for a day or two it would start right up. I have also checked the timing and compression. The compression was a bit low on one cylinder but I don't think that would explain how it will start if I unhook that valve temporarily. It almost has to be flooding while it sits for a period of time. Right now I have to leave work every two hours and run the car for a short period of time or it will not start when I get off work at 1 am. It is about 45 degrees out right now.
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- #143 of 208
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Re: 93 Geo Metro won't start cold [bobkat2]
by zenden
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Mar 13, 2009 (6:13 am)
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Replying to: bobkat2 (Mar 12, 2009 8:24 pm)
Code 15 must be present (ECT coolant temp) is to high, to test for that go under the dash to the left side above the drivers left foot is the fuse box; on the fuse box there is a protruding blank it is on the forward right corner of where all the fuses are located. With the key shut off, insert a spare fuse in that slot. Then turn the key on, watch for the check engine light to flash code 15 if this happens, remove that fuse that you put in shut key off and replace that coolant sensor that you have been unplugging to get started every morning. Your engine thinks that you are running very hot and that there is no need for extra gas to get started when it gets cold outside. You must be getting great gas mileage with that bad sensor. I always get 64 MPG at 58 MPH. Hope that this helps! I have the same car that you do. Keep in touch, let me know how it goes, I will be back on line on Tuesday. Zenden
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