Question about 2001 Hyundai Sonata

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Replaced tps, fixed inital problem

Replaced the throttle pistion sencer, fixed the original problem now its not shifting right the rpms are way to high and if your sitting still and goose the throttle it will reve up and run fast it wont come back down till you put it in reverse then drive, or unplug sencer and plug back in. had to remove idle control valve to get to the tps, put all back together and it sonuds like its sucking air please help

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Sounds like a serious vacuum leak .. you can use a small hose or stethoscope to locate where the leak is .. might be an assembly error or broken hose .. look for things to be out of position ..

Posted on Oct 04, 2009

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How i clean the TPS sensor of a ford escape xls 2011 2,5 Lt l4 mecanic


it sounds like it's the idle air valve this controls the idle and drive rpm's when you step on the gas does it sometimes at idle go up & down by itself repeatedly? it could be something hitting the throttle and when you press down on the gas or shift it is knocked out lowering to normal idle/rpms, the tps is on the throttle body and is connected to the throttle lever and most likely right on the other side of the lever a little switch with a electrical plug on it search it so you can see what it looks like if you don't know already they are sealed and can not be cleaned you must replace it try checking with the car in park engine running and raise the idle by the throttle lever if it goes smooth up and down return to rpms that's not it if it races or sputters and then raises up that's it or it could be both units are blown out needing to be replaced

Aug 23, 2014 | Cars & Trucks

1 Answer

2002 sl2 rpms very slow to drop when shifting manual transmission


Okay, check the TPS you installed for proper meshing of the components. Disconnect the throttle cable and feel action of spring for binding. Check throttle plate for carbon and dirt buildup, clean.

Now some TPS units have a slot on one end. This can correct the jump in RPM. Just slide the unit either way while the engine is running and see if it speeds up or decreases the idle position. Then tighten the mounts. There are some other adjustments possible but check for a bad intake leak.

This can be done with the engine running and using a spray bottle of water. Mist the seams of the intake gasket and around vacuum lines. Any change in RPM or stalling will prove there is a leak and allow you to fix it.

It is kinda simple. A air leak is like opening the throttle to let more air in. The engine will run faster. Correct the leak and the idle should be reduced.

Sep 30, 2012 | 2002 Saturn Sl

1 Answer

88 2.9 ranger sputters at 2500 to 3000 rpms when i drive it. it runs fine until i try to get on it or get into higher gear and rpms ut spits and sputters


If all plugs ,wires etc have been done, next i would confirm proper fuel pressure, then I would check throttle position sensor. An old analog ( with sweeping arm) multimeter on ohms, remove connector at TPS and connect to 2 of the pins on TPS .(throttle position sensor) Engine off, rotate throttle, or have someone push it from inside, slowly, gradually and needle of multimeter should sweep across as well, if not try different combination of 2 pins. When you find right combination that makes needle move when throttle pushed, observe the needle as someone pushes throttle slowly and steady from slow to wide open. If the needle jumps, or falls off and comes back up as throttle steadily pushed, then replace the TPS. If the needle slow and steady moves up /across and no stumbling, the TPS is probably ok. Make sure you test it a few times at least.

Feb 17, 2012 | 1988 Ford Ranger

1 Answer

Is a Throttle Position Sensor the same thing as a Transmission control Module


The TPS ( THOTTLE POSITION SENSOR) tells the engine computer and trans how far you are pushing the gas pedal. Its mounted on the side of the thottle body. It will make the engine surge if it is failing. Have replaced this part many times for this problem. TCM (TRANS CONTROL MODULE) control trans shifting. The tps is and one of the input sensor for shifting.

Feb 03, 2012 | 2004 Jeep Grand Cherokee

1 Answer

I have a 1998 ford contour 2.0 liter automatic transmission vehicle with 150,000 miles. It just recently began having trouble accelerating and shifting. If you hit the gas it slowly accelerates and...


TPS throttle position sensor might need adjustment or the catlic converter in the exhaust needs replacing as its not leting the exhaust out freely.

Oct 04, 2011 | 1998 Ford Contour

1 Answer

I have a 2001 Oldsmobile Aurora that has a high idle; had diagnostic done, says to replace PCM. Replaced PCM after having programmed by Chevy dealership in town, and it still has a high idle of 1100 RPMs....


Why wasn't the Throttle Position Sensor replaced? The first suspect should probably have been the IAC (but you would have gotten a code), the next logical step would have been checking for something mechanical like the throttle body being gummed up and needing cleaning, but I would replace the TPS before I'd EVER think the PCM would need replacing...I'd hate to see that bill. I have a 2001 Aurora with a 4.0 and I have replaced the IAC (got one at a salvage yard, out of a Caddy, same one)-it did fix mine, but the next culprit would have been the TPS in any case, PCM's rarely go bad.

Apr 06, 2011 | 2001 Oldsmobile Aurora

1 Answer

I have a revving sound on the engine when I shift gears. The rpms are not high so I am baffled. This is a ford f-150 6 cylinder 4.2l , man trans. It idles normal


Sounds like you may need to replace the TPS (throttle position sensor), that will cause the idle not to fall in between shifts.

Mar 10, 2011 | 2000 Ford F150 Flareside SuperCab

1 Answer

My 1999 saturn is revving very high when i am at a red light or stop sign, the rpms are about 2200


If the problem is fixed by turning the car off and then right back on and the idle levels back out then it is the Throttle Position Sensor (TPS). It is located on the throttle body and is one of the two sensors (the other is the Idle Air Control Valve IAC).

Replace the TPS. If that does not work then replace the Engine Coolant Temp sensor. It is notorious to go bad and crack because it is plastic. That also effects your idle.

Feb 22, 2010 | 1999 Saturn SC

1 Answer

Hello, I own a 93 toyota forerunner, 4*4, v6, automatic. Transmission was only shifting at very high rpms. Replaced trans with another out of identical vehicle, transmission will not shift, disconnected...


The transmission is controlled by the Transmission Control Unit (TCU).

Throttle position, rpm, and speed are input parameters to the TCU. The TCU has a default set of shift patterns. These shift patterns change over time based on your specific vehicle setup and driving habbits.

The shift patterns are only slightly affected by driving habbits over many driving cycles. But, changing the relationship between the throttle position and the actual speed being reported by the speed sensor can have an immediate effect on shift patterns.

While your speedo may now be correct, the realtionship between rpm and thottle position has not been corrected. That would take a gear change in the differentials.

The TCU can be reset to an inital learn base line. When this is done, the TCU will instantly learn the dynamics of your setup.

Any shop with an advanced ODB scan tool can reset the the TCU. The dealer or a transmission shop would be preferable.

You really should change your differential gears as opposed to resetting the TCU

This information was posted by ftgiles here

Jan 06, 2009 | 1993 Toyota 4Runner

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