Celica :: 1994 - Idle With AC On Goes From 750 To 500 And Cycles Like That
Jun 23, 2013
I have a 94 gt with the 5sfe and at idle with the a/c on and up to operating temp the idle goes from 750 to 500 and cycles like that. It sounds like it is when the a/c compressor is cycling on and off but the compressor never disconnects the clutch unless I turn the a/c off. also when it drops in rpm the engine shakes bad. I have checked all the motor mounts and all are good and the rear one has a solid mount insert.
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My son has a 1994 Celica GT with the 2.2 5S-FE engine. Recently told me his heat didn't work very well, he had mentioned it last year but due to extreme cold we've been having I decided I would look at it for him. So anyway, I started by pulling the thermostat thinking it was probably stuck open or possibly someone had removed it completely, well there was one in there and it was closed so I tested it in boiling water, worked fine, replaced it anyway.
So then I checked behind and under the dash, thinking maybe something was opening or closing completely, but they are connected and operating, when I move the controls inside I can hear the doors moving and closing and all the linkages under the dash are connected and operating. Still no heat, so I figured the heater core was clogged since the return hose didn't seem to be getting hot, or the heater control valve was bad, pulled the heater core hoses, checked the heater control valve, control valve worked fine and was not plugged. Flushed the heater core, nice clean antifreeze, I then checked it with air, manual said put 6 psi on the input and make sure it was coming out of the return, which it was.
Reconnected everything, bled the air, still nothing, took the hoses off and connected the return hose to the heater control valve, bypassing the heater core, both hoses got hot. Sure seemed like a clogged heater core, did the air test again with 2 psi, still made its way out the return side. Reconnected everything again, still same issue, return hose never got hot. So while it was running hot with thermostat open, I removed the return hose, nothing coming out of the core, then I revved the engine and it started coming out, reconnected it and ran car at 3000 RPM, finally a little heat out of the vent, about 115 degrees by thermometer placed in vent, as soon as I let it idle the temp fell back to 80 within a minute or so.
Now I figured the water pump impeller was worn/corroded or was slipping on the shaft, so I pulled the whole thing apart. ( I should mention that the entire cooling system is very clean I don't see any corrosion anywhere) Any of you that have done this knows what a pain in the butt the whole job is, anyway, when I got it apart I was surprised to see that the impeller looked like new and was definitely NOT slipping on the shaft... what the heck???
When I took the pump off the housing I noticed the housing had a lot of wear, it look as if the previous owner let the water pump fail to the point that the bearing wore enough that the impeller ground down the raised boss inside the housing, I though AH-HA, this has got to be the problem, water is not actually pumping/circulating inside the pump as efficiently as it should, hence the reason I only get coolant into the heater core at high RPM. So i replaced the housing, the water pump, and while I was in there I did all the oil seals, and the timing belt. Well I got it all back together, fired it up added coolant, let the engine come up to temp, bled air, still NO HEAT!
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My 94 gt doesn't have the idle speed adjustment screw like the manual says it should so how does one adjust the idle speed?
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The car: 1994 toyota celica GT 2.2L automatic
Here's the problem: car starts fine when cold. When fully warmed up, if i stop to go to the store or something, and then start it after like 20 - 30 minutes it will start and the idle will be fluctuating between 800 and 400 for a few minutes and then even out. sometimes it will actually start up and die immediately, in which case i can save it by giving it gas for a few seconds and then it's fine.
What I've done so far: plugs (NGK), wires, cap, rotor, fuel filter (toyota), (checked air filter. still clean), tried cleaning the throttle body and IAC with some deep creep spray while on the car (not much effect).
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My brother was the original owner then passed it on to me. I then passed it on to my younger cousin about two years ago. The car is completely stock and has never been modified. Everything is OEM.Just a couple of weeks ago I was called by my cousin saying the car broke down on her .The problem is that we took it to a few mechanic shops but they still haven't fixed it ...
Problem with car: When pressing on the gas, the idle drops and then the car dies (a scary event that happened to us and on a main road). I do not wish to bring it to another fail mechanic shop.What the shops did: changed all fluids, distributor cap and plugs, new spark plugs, and replaced air intake piping with oem piping.
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94 celica GT 2.2 federal automatic, doesn't want to run, coughing, stalling, rpm gauge jumps eratically up down.
Computer says one code only, #12. Regarding Haynes manual it's distributor circuit or Igniter. When engine stops rotating (ignition still on), many times there is noise from distributor cap, like zzzzz....
System keeps shooting spark between distributor cap and rotor and there will be spark on that same spark plug !!!!!!
What's wrong? Distributor or Ignitor ??
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Ok so i bought a 1994 celica GT from a police auction the other week and it wouldn't start so we went ahead and put a new fuel pump in it then we put new spark plugs in it. When removing the spark plugs i saw there was oil on them. My friend suggest we do a motor swap cause he thinks its a blown head gasket. Could this be an easy fix or should i go through with the swap?
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I have a 1994 celica GT, 2.2 with a 5 speed. I thought I either had bad tire noise, or maybe a wheel bearing noise, I put the car up on jack stands, started the car and put it in gear, and the noise I have is a loud growling sound, which gets worse the faster the wheel spins. I took a 2x4 and stopped the passenger side tire (drive wheel) so the driver's side would spin, the noise went away. From what I can tell, or am guessing, the noise is coming from the trans. Could this be a bearing in the trans case? Of course I can't find an exploded view of the trans!
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I have a 1994 Celica 1.8L ST which cut off on me while driving. I have been trying to troubleshoot the problem. Here's what I've done so far:
Originally after the engine would cut off I could get it to start again, but there came a point when it wouldn't start. I ended up replacing the ignition coil, and immediately the car fired up again and was running. However, the check engine light was now on and the engine had far less power and was running very rough. Nevertheless, the car was still working and would no longer cut off. Thus, I took the car to Precision Auto Tune to get a diagnostic test done, and they told me the distributor was bad.
I then purchased a new distributor and replaced the old one. Immediately the check engine light disappeared so I took the car out for a test drive and it ran perfectly; yet, after ten minutes, the engine suddenly cut off while driving down the road. After coasting the car to a place to park, it refused to start again. I left it overnight, tried starting it the next day and it randomly started. It ran for 10 minutes again in park before cutting off again. Since then, i thought the new distributor was faulty and exchanged it for another, but the engine still cuts off after running and refuses to start again. However, when it refuses to start, if I install the old "faulty" distributor, the car starts without a problem, but the check engine light also appears.
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Just picked up a 1994 1.8 celica hatch and it was told to me that the 100 amp alternator fuse blew and there was some issue. So far haven't found any but I also cant seem to find this 100 amp alt fuse that goes in the fuse box under the hood. I don't have old one.
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I have a 1994 Celica ST Coupe and looking for good dual or single subwoofer enclosure box that would fit neatly in the trunk against the back of rear seat.
I currently have a 12" Alpine in a huge box in the back- but it simply isnt practical. If I ever needed to remove my spare tire, I would have to disconnect the speaker and remove the entire enclosure.
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1994 celica GT 2.2L
Just happened last night, i was driving on the highway when i noticed my temp needle was reading about a 1/4 of an inch higher than normal. That's never happened before. It's always been rock steady right in the middle. I was doing about 80 miles an hour. i slowed down to about 65 and the needle went back to the middle. I sped up to 70 and the needle went back up again. So i slowed down again and it went back down.
Tonight i was on the highway again, but due to the freezing rain and hail, i was doing between 40 and 60. Tonight the Gauge never moved from the middle. It was steady all the way until i got on the off ramp at the light, Then it went up and came back down by itself. I didn't hear the fans come on. I went to a local parking lot to do some tests. I parked the car (gauge was in the middle), and reved the engine to raise the temperature. It went up and then came down. Fans did not come on. Strange. I them went back to my house. parked the car, put the hood up and tried to make the fans some on. Here's where it gets interesting...
while in my drive way, the needle goes up, both fans come on high speed, needle drops. I then tried to do it again. Reved the engine for a second, i hear both fans come on high speed, but the needle is in the middle. It did the same thing again with the needle in middle again.
There are no external leaks. engine oil is full. Both fans work, but on high. There is no debris covering the radiator. I replaced the thermostat around april 2011,( it was not a genuine toyota part and didn't have jiggle valve. is that ok? it's been fine all this time.) Timing belt and water pump have not been replaced (so i've been told).
Tomorrow i will check the coolant in the radiator, ignition timing, and check the radiator cap. What are the odds of it being the cooling fan switch or a relay? i only ask because it hasn't come on low speed since this happened. Will warm car up in drive way and see tomorrow.
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I have a 94 celica gt and at random times the power is much greater than normal. it seams to happen most when the engine is not fully warmed up or if I'm driving all day and it starts to cool down for the day. normally my 0 to 60 time is around 8 to 10 seconds and when this happens the time drops to around 6 seconds. I also have a 93 Toyota pick up that does the same thing and another 94 celica that doesn't do it.
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I have a 94 Celica 2.2. I'm having issues with power steering fluid leaking from reservoir cap. I replaced the cap due to the old ones seal had dry rotted and dip stick was broke off, also replaced the 2 small short hoses and new clamps. The return hose is working right and the high pressure hose seems to be working right. None of the hoses are leaking but pressure is building up and pushing fluid out the reservoir cap. What else could be the problem to cause this??
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I have a celica 1.8 st202 that doesn't start. The efi relay and fuse are ok. I tested these and even replaced the relay with another one.
-When I jumper the pins in the diagnose box B+ and FP the engine starts.
-When I remove it the engine won't start.
-When I remove the jumper the fuel pump doesn't get any power.
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Could a bad vsv be affecting my idle speed? I'm wanting to adjust idle as per the maintenance schedule and i don't know if i should wait until after i replace what appears to be a bad VSV. Also, where on the top part of the wiring harness i can connect an ohmmeter so it runs to the VSV so I don't have to get back in that tight area?
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Recently when I start my car, it starts fine when it's cold because it will idle high until it warms up, but if I start it while it's warm the rpms drop to about 500 barely idlling and if I tap the gas a couple of times the problem goes away and it idles normally at about 700.
I recently also replaced the o-ring on the distributor because it was leaking oil. I reset the timing twice. It is hard to get an accurate reading in the dark, looking at a little timing mark 3 feet away, but I am sure it is at 10 BTDC.
New wires, new thermostat, air filter could be a little dirty, other than that, I am thinking it might be an oily sensor or something else?
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I have a 1995 celica gt at times the car was hard to start it would start idle really low then cut off this went on for about 1 month. The other day I was driving it and stopped at a light the car cut off and wouldn't restart. I originally thought it was a fuel pump so I took off the fuel line going to the fuel filter and attempted to start car fuel came out so I knew the fuel pump was working.
I then pull out 1 spark plug put it in the end of the spark plug wire and held it against the block while someelse cranked the car no spark was observed. I then marked the distributor and removed it. I looked at the rotor and it was really worn also the ignition coil had a crack on the side of it. I removed it and went to auto zone and found a replacement for $42.00 they sell two different type one for the 1.8 engine and for the 2.2 engine so know which engine type you have. I put every thing back and the car ran fine. However I would like to bring up the rpms a little they do seem low but I attempting to find out what how to do that.
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My 1992 Toyota, Celica had developed a really weird idle surge. The idle surges between 500 to 750 rpm. The surge goes away with the AC on and it idles steady at 900 Rpm. It also has a slight off idle bog that may just be another symptom of the weird idle.
I did the diagnostic test today and it doesn't flash any codes. I pulled the EGR valve off and cleaned the gunk out of it and it didn't make any difference. I tried to check the timing and it idles so bad the timing bounces 7-10 degrees with the surge. When I did the jumper to check the timing it would kill the engine. The plugs and wires are new with in a couple thousand miles. It runs fine above idle and pulls to redline easily in the lower gears.
Yesterday when I was messing with it I had the car running with the air boot from the air cleaner to throttle body off. I sprayed carb cleaner into throttle body and it seems to clear up a little bit. Then it went back to surging again.
I tried to pull the TPS off yesterday and of course the bottom screw stripped out. Now I will have to pull the throttle body off to get the screw out. I wish it would throw a code so I could have it give me a clue.
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Just acquired a 1990 celica gt at a steal lol and needing some troubleshooting answers. tonight was the first night we really had drove it, but my husband drove it to work which is an hour away and he noticed that when he comes to a stop the oil pressure light comes on. as soon as he starts to go again it goes off. the engine does not make any noises other than the typical 2200 lifter chatter and it does not leak oil.
We plan on doing an oil change so we are not sure if that could just be the issue or if it's something else. we had this issue with a dodge ram we had and it ended up being the oil pressure sending unit. he took the one off the car and it did need some tightening up but however when he put it back on the issue was still there.
We do not believe it's any low compression as the car cranks fine and normal with no rising of the cranking as you would get for a cylinder with low compression. we aren't really sure about the bearings because well that's not one of those things easily tested but the engine doesn't make a noise which I know at times you won't have one.
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I just bought this little car. It ticks at an idle and it burns 1/4 qt of oil a month. It doesn't stop ticking when I add oil so Im at a loss.. It isn't a loud tick either. It has 200,000 miles on it but it is in great condition besides this.
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