Celica :: 1991 - Surging At Constant Speed In The Range Of 10 - 50 Mph Or So
Jul 2, 2011
I have a 1991 celica gt 5sfe hatchback. I am getting a surging at constant speed, at idle it's fine as well as acceleration. It only does it when trying to maintain a constant speed in the range of 10-50 mph or so. It's feels like I'm pushing the gas and letting off repeatedly. I took it to get an emissions test and it failed on the low side test with high co2 reading, everything else is fine and one place couldn't do the test because the surging kept kicking the computer out since they have to keep it at a constant 15 mph speed. I think whatever is causing the surging is causing me to fail the low side emissions. Could it be the iecu?
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This truck has 180km on it and runs fine except as of lately i have developed a surge while at constant speed. When i step on the gas it does not seem to happen.....it only happens when I reach a constant speed. The odd time it will surge at idle and the engine will rev up and down on its own also. When at highway speed it seems to not do this. The truck never dies completely....just surges slightly.
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I have an 04 Elantra GT and have been noticing a jerkiness when driving at a constant speed on the highway. I haven't noticed it around town or while accelerating. I also have noticed that when I disengage the clutch on the highway, the engine sometimes doesn't respond right away, or it even may surge. This has happened when exiting the highway when I disengage the clutch. The engine will slow, then speed up close to 3000 rpms.
I also had a check engine light come on and couple months ago. The code indicated that the upstream O2 sensor was bad. I took it out and cleaned it, but didn't replace it. Is this a likely culprit for this set of symptoms? If so, how can I test the sensor to be sure? I heard that I could disconnect it and run the car and see if the surging lessens, but wasn't sure if that was a good thing to do.
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What is the location of the speed sensor on a 1991 automatic .. According to Haynes it is under the air filter but know matter how hard i look i cannot locate it .. Could it be that mine is an import from Japan so will have a different location ..
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I recently bought a 2006 sonata with the 2.4 & automatic. It has 56k miles but is out of warranty (CDN). A lot of times at 50 mph it has a very noticeable surge where the car is not sure what gear it wants to be in (feels like torque converter locking & unlocking). At 60 mph plus it's fine & the tranny shifts smoothly. The fluid is nice & red with no burning smell.
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This weekend I was driving home from my parents and noticed that on flat ground at a constant pace there seemed to be surging of some sort...Although I am not sure that surging is exactly what it was, but it is the best word to describe it.
Basically, if I kept my foot at an even speed (not accelerating or decelerating) I would get very subtle movement in what seemed to be either the differential or the transmission. No error codes were thrown and the battery gauge was spiked at 14 solid.
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1991 Honda Accord DX A/T A/C. The engine is surging/searching at idle in park and in neutral from 1000 up to 2400. There are no engine fault codes.
I have cleaned the IAC, adjusted the TPS, Removed/Cleaned/Re-installed the TB, No MAP problem. I also removed the "black box" and checked the cold idle control diaphragm as best I could. I cannot find any specs on testing this. When I apply vacuum to it via the center port on the bottom it holds the vacuum, but takes approx 5 seconds for the diaphragm to "pop" to its ambient state after releasing vacuum.
I have sprayed all possible vacuum hoses along with all intake gaskets to test for vacuum leaks.
I have attached a diagram of the black smog box that is mounted on the firewall. The cold idle diaphragm is labeled as 2. I also have concerns about that electrical vacuum solenoid labeled 27.
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1991 Ranger STX, 4.0. Had a leak from the rubber seal on the thermostat. Changed the thermostat (stat 195) and seal. Now my temperature gauge is not showing a constant reading, goes to half way and when the thermo opens the gauge falls down to a quarter. The gauge is cycling this way every time the thermo opens.
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i have a 91 celica 4AFE 1.6L 5 speed & the cooling fan won't come on. we checked, the fan does work, we changed the fan relay & that's not the problem. what should i do now?
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I have a 91 Nissan sentra. The seat belt warning light and buzzer like to go off for no reason. Sometimes this lasts my entire trip, 30 minutes of constant buzzing. I have narrowed it down to the front passenger automatic latch.( it slides across the top of the roof and latches in the back.) I have tried every thing I have heard to try from unplugging the wires under the seat to spraying wd-40 into the latch. Nothing has worked. I am just short of ripping out the dash board to cut the wires to the buzzer.
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I have a 91 celica with a 4afe engine and i cant get any spark. i replaced the distributor today and still no spark what else should be replaced...
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I have a 1991 celica that I can not get to start. The car has the 3sfe 2.0 in it that I think came out of an 89 celica. We have put a new starter on this car, alternator, plugs, wires and distributor cap, battery and more onto this car. The car however will push start. When you turn the key everything comes on and it clicks. Nothing else happens.
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I have a 91 celica st and my efi fuse keeps blowing. i would like to know what the efi fuse controls, or what to check first.
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I just purchased 91 Celica GT and have so far been very pleased except for one major problem. I thought Toyotas are suppose to get great gas mileage?. My car is an automatic with 150000 miles on the odometer. I'm getting around 19 mpg on the expressway. I bought this car thinking about good gas mileage. Is this normal mileage.
I've had the car tuned up (new plugs, wires, cap, etc.) I took it to my mechanic who put it on a computer and the emissions read O.K. and no code faults. I took it to a trans shop to see if the trans. was shifting O.K. and it checks out O.K.and the overdrive is working normally. I even double checked the timing to see if maybe the previous owner set the timing wrong when changing the belt. Checks out O.K.
The car seems to run and idle great with no roughness. Is this gas mileage normal and if not, how to improve it. I get better gas mileage from my 91 SUV explorer...
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I have a 1991 Toyota Celica ST184 5SFE that has only just started to have a few issues with the Speedometer.
Issue: When driving the Speedometer may jump up and down and when taking foot off the gas it will instantly drop. Happens now and then it may work again.
I have taken the car to the mechanics and they have confirmed that the car uses a Sensor for the Speedometer.
I took my car to an Auto Electrical Mechanic and he did a few tests on the car using a tool that showed the speed of the Sensor when Driving and he has confirmed that the Sensor is working correctly as he can see the speed while driving.
He mentioned that there is likely to be an issue within the Dash and possibly a loose cable or a bad resistor.
How to troubleshoot this on the Dash and how to remove it correctly without damaging anything.
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I got 91 celica gts recently started to tap when the motor is warm I've changed cap button wires plugs still getting this noise might be chatter but only when warm not there when cold.
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My cooling fan just stoped working the other day (not sure why) i replaced the fuses and relays they are all good. Now when i unhook it from the radiator fan switch it turns on but plug it back in and well it shuts off, i put a new switch to see if it will work but it started running real rough and hard to start so i put the old one back on and nothing changed. I read the book and checked everything but still nothing and why my engine light came on and it started running rough.
its a 91 celica 1.6 (4AFE)
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I have a 1991 Toyota Celica GT with 220,000 on it. Will a valve job improve gas milage? I currently get about 22 mpg city driving if I use medium grade gas. The reason I ask is that I was thinking of getting a new car - but a valve job would be a lot less$$$ and I just can't see buying a new car that get less gas milage.
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My sister has a 1991 toyota celica GT ITS 5spd with the 2.2L in it which is the 2200 twin cam and all that. Last week her alternater went out. I replaced it and got the correct belt tension good volts going everything but now when she is going down the road doesn't matter what gear anywhere from 1800-2800 rpms her car jerks like its missing i checked the plugs and they are white which means its starving for fuel but when its cold its no problem drives perfect i was thinking replacing new plugs new wire distributor cap and fuel filter and seeing if that solves it...
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Which line goes to front brakes and which to rear from the master cylinder?
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Its a 1991 Toyota celica with the 1.6 and 5 speed trans. the motor on cold or hot start up shakes really bad and has a lot of valve chatter. Along with that, the motor does not want to rev at all, almost like you are not even touching the gas, but you have it to the floor. A little back ground on the car is, the car sat for 6 months and i bought it from a friend to drive back and forth to work to keep miles of my supra. He said that the CAT was plugged so i replaced it. I have replaced the coil pack, distro cap, spark plug wires, spark plugs, rotor button, catalytic converter, air intake, and all the air tubes that looked like they were cracking. Now I can start the car, and it does the same thing. I thought it may be out of time, just because that is sort of what its acting like. I have had the motor rev up 3 times since i have had the car. But everytime I do it back fires and DIES, the car will not start til after the car cools down.
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