Question about 1994 Toyota Tercel

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1994 Toyota Tercel idle

I just bought a '94 Tercel. It runs great but idles rough at stop signs and lights. It seems to only do this after it's warmed up. Please help.

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Mine did the same thing. Try adjusting the idle. But if you adjust it too much it may run rich

Posted on Jun 20, 2009

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I have 94 toyota pickup 22re engine,starts fine underpower is fine,when it is warm it will idle so low that it will stall unless i give it gas at lights and stop signs offramps


Here's a brief video on idle adjustment:
http://www.youtube.com/watch?v=aXzDZSNSHJE
If the slow idle is a recent change ... then of course you
need to find the problem.

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I have a 1994 Toyota Tercel that shakes alot when idling at stop light. I put it in nuetral to stop shaking, but it seems to be shaking alittle now in nuetral. What can it be?


sounds like bad spark plug wires, with the engine running in neutral and emergency brake on, spray the top of the engine over the spark plug wires with a spray bottle of water, if the engine runs worse or stalls, or you see small sparks, then its the spark plug wires.

Oct 30, 2009 | 1994 Toyota Tercel

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94 Honda Civic DX idles low/rough at a stop


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Jun 28, 2009 | 1994 Honda Civic

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93 deville 4.9l running fine, stop at light, stalls,restarts, runs fine, occaisonally happens. HELP! As many people with different make and models I have the same problem. My 99 Outback occacionaly rough...


My 94 Sedan DeVille had the same problem. The car ran great but would stall whenever I stopped at a stop sign or traffic light. Turned out to the the TPS (Throttle Position Sensor). It monitors and controls the idle. What happens is the secondary idle (idle when the car is warm) is too low. Since all the controls for fuel mixture, idle etc are done electronically, they can't be manually adjusted. The TPS is the most likely cause of your issue. A diagnostic test (performed free at most chain auto parts stores) will be able to confirm this or lead you to another component. Best of luck to you!
Greg

May 15, 2009 | 1999 Subaru Legacy

1 Answer

Idles too low


A clogged fuel injector would make the engine shake, and your power would be compromised.
Whe you changed the plugs, did you put Toyota plugs in, or a different brand? More often than not, using any other plug than plugs bought at a Toy dealer can make the engine run worse. The engines are designed with a specific plug. Also, replace the wires if they are older than 5 years.

Sep 27, 2008 | 1994 Toyota Tercel

1 Answer

1984 Toyota tercel wagon


Although this isn"t a proper fix, and may affect emissions, I ran accross this problem on a friend's 87 2wd wagon.

There is a dashpot that controls a lever the Idle set screw is on, I am guessing it is a decel valve that closes butterfly when coasting in gear. I never looked at a manual to figure out what controls the vacuum valve that is on the passenger side of the engine compartment, but if you disconect the vacuum line and plug it that lever will not back off and idle will remain where you set it with the adjustment screw.

Make sure the engine is warmed up and not on a fast idle cam before adjusting idle.

The car is a 5 speed, I not sure if automatic cars are the same.

The car idles fine now and still run's great and gets 37+ MPG with 240000 miles!

If you want to fix it properly you would have to diagnose why that dashpot is being actuated at idle

Sep 01, 2008 | 1984 Toyota Tercel

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