Question about 1988 Plymouth Horizon

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My 1988 plymouth horizon runs fine when on throttle but when i let up it spits nd sputters and dies. I have checked the charging system and it brings up no codes.

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  • 6,674 Answers

Check and clean AIS motor. (automatic idle speed) sometimes referred to as IAC as well. ( Idle Air control) same thing. remove it and clean pintle (pointed end) well with throttle body spray cleaner, as well as port it comes out of, and try it. If it's cured great, if it happens again a little later, replace it.

Posted on Sep 15, 2010

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Posted on Jan 02, 2017

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1 Answer

I have a 88 Plymouth horizon was running fine And all of a sudden I turned the key on and nothing happened I changed the battery new ignition relay and still nothing can anyone tell where to find wiring...


Try holding key in start position while moving shifter slowly through all gears to see if you get a click or start at all. Safety neutral switch/back-up lights on transmission were known to cause that problem.

Feb 28, 2015 | 1988 Plymouth Horizon

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When starting the car, its runs fine for a moment then it seems like when the motor starts warming up it is right on the brink of dieing so i then have to feather the throttle to try and bring it back


now with all of these facts do it spend alots of gas than usual ?
to fix the problem change some thing is called oxygen sensor and your problem is done ;)

Nov 25, 2013 | 1999 Mazda Protege

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I got a 1998 jimmy with the 4.3 vortec. Engine my wife was driving it when all of a sudden it started to spit and sputter and die out it would start up fine and idle great but as soon as you go to push the...


This could be a blockage in the carburator,try to clean it, especially the valves. There is a specific spray for the job on the market. You might need to dismantle it.
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Jul 20, 2017 | 1998 GMC Jimmy

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Plymouth reliant 1988, idles fine, under pressure loses power and spits and sputters like it is not getting enough fuel, and have change the map sensor and also checked to make sure that all fuel is...


you said your getting fuel if you check the fuel pressure and it's okay, you should check your injectors next, if not that get put it on machine for diagnostic test then repair accordingly

Sep 04, 2011 | 1988 Plymouth Reliant

1 Answer

My 1988 Plymouth horizon had some gas put in it that was mixed with 2 cycle oil and then it was ran out of gas totally. I get some gas put in it and it has just spit and sputtered and been messed up ever...


What you have there sounds strange to say the least. The codes seem unrelated. (ignore 55...that is just the end of code string). Before going any further check every fuse and fuse socket to make sure everything is good there. Don't bother identifying the fuses just check them. ALL....ones under the dash AND the ones in the power distribution center. have you tested the MAP sensor both for vacuum and electrically? There are individual component tests you can do using a digital multi meter. Instructions are in chilton or haynes manuals. (manual and meter probably cost less than half what you've spent already). If you find nothing then you will need to "pin out" the wiring from the computer and make sure everything is getting to and from it properly and also Why not test that O2 sensor and make sure the converter isn't plugged? You can often clear the injectors by putting 4oz of acetone per 10 gallons of fuel into the gas tank. I can't write out instructions for all the tests but if it ran well before you added the chainsaw fuel (which normally does little or no permanent damage), you are probably missing something simple. I can't tell you what it is only because I can't see it!!!

Jul 11, 2011 | Plymouth Horizon Cars & Trucks

1 Answer

When advancing down highway vehecle spits and sputters then clears up then spits and sputters what is it


When was last tune up? Plugs, wires, all filters & fluids? Especially fuel filter. I'd start there and run a good fuel system cleaner through it.

Mar 15, 2011 | 1988 Ford Ranger

1 Answer

I have a 92 plymouth voyager been sitting since january we charged the battery and it stated right up but when we go to take off in gear it will spit and sputter and die like it loses fuel presssure...


i have seen the torque converter lock up stuck on for the trans it's like taking off in 5th gear with a stickshift. If so there is a solenoid in the trans that you can change.

Aug 15, 2010 | 1992 Plymouth Voyager

1 Answer

Truck runs like ****


You have checked the fuel pressure? Do you have a check engine light? As for the tank filling up the wrong one, that is caused from a bad tank select valve on the frame rail.

Apr 02, 2010 | 1988 Ford F 150

1 Answer

1985 Plymouth Horizon


I would change the fuel filter and have the alternator tested and check the condition of the drivebelt

Apr 12, 2009 | 1985 Plymouth Horizon

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