Question about 1998 Hyundai Elantra

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Air conditioning when th air conditioning works, is cut to accelerate the departure of the air and off the pedal operates normally

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You have a vaccum leak. Look under your hood for a 1/4 inch black plastic line. It can be hooked into your filter intake housing. Usually this is where the leak is. There also is a black round plastic ball shape device under the hood. This usually has a vaccum line connected, you don't want any leaks there. Those are the easy fix suggestions for a vaccum leak. If you can't find it there, look for other vaccum operated items that are model specific. Hope that helps.

Posted on Aug 10, 2010

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Howl to fix air condition on 1997volvo960 air only blows to floor


You probably notice that it blows through the dash UNLESS you accelerate hard, then it's floor and defrost vents that gets the air.

It's a ~$40 dual action bellow sort of up over the gas pedal that is malfunctioning. You can put a band-aid on it by removing the kick panel over the pedals and then plugging the yellow line going to the bellow.

To replace it (per Volvo) you have to remove most of the dash! That's expensive and a pain in the behind, plus you probably will have rattles in the dash after.
OR you can cut a hole in the air box where the baffle connects and replace it, then patch the hole with the 'lid' you cut out and duct tape it back on.
Nobody will ever see it. :D

Aug 29, 2014 | 1997 Volvo 960

1 Answer

Air conditioner stops when i accelerate rapidly


The air cond compressor is supposed to stop, but only if the gas pedal is pushed to the floor.
If it is cutting off and the pedal is not all the way down, you could have a problem with the throttle position sensor.
Cutting off during hard acceleration gives you a few more horsepower.

Feb 08, 2013 | 1998 Dodge Ram

2 Answers

My car turns over good, acts like it might turn on then continues to turn. I figure it might be fuel filter since low fuel light had come on.Or could it be th fuel pump got hot and is not working properly?


common problem is turning car off with engine not reaching normal operating temp and floods engine. try this. DE-CHOKING PROCEDURE WHEN ENGINE CRANKS BUT DOES NOT START
If the engine does not start, try the following procedure to start the engine using the de-choke mode.
Failure to do so may aggravate the no start condition.
1. Depress and hold the accelerator pedal to the floor and crank the engine for 7-8 seconds. (This will clean out any unburned fuel from the combustion chamber)
2. Release the ignition key to stop cranking.
3. Release the accelerator pedal and start the engine. If the engine starts while performing Step 1 the engine will rev up. Immediately release the ignition key to stop cranking and remove your foot from the accelerator pedal.
^ Do not keep holding the ignition switch in the START position over 10 seconds if the engine does not start. This may result in a weakened or dead battery.
^ Avoid racing the engine or sudden take off right after starting the engine.
^ If the engine still fails to start following the De-choking procedure, have your vehicle inspected by your Mazda Dealer.

for your info there is a recall for this problem. contact mazda.

May 04, 2011 | 2004 Mazda RX-8

1 Answer

ELectic fans cut off and on what causes that on a 98 toyota camry


It is normal for the electric fan to cut off and on while the vehicle is running, there is a sensor in th radiator controlling the fans, switching them in when it senses the coolant temperature is too hot. The fans then run until the temperature reaches normal range again and the fans switch off. It is also normal for the fans to cut off and on with the air conditioning running. If they are coming on at any other time, such as when the engine is not up to half way on the gauge and the air con is off, there is likely a problem with the sensor or relay.

Mar 24, 2011 | 1998 Toyota Camry

1 Answer

2004 ford focus ac blows warm when briskly accelerating. not full throttle. moderate acceleration no problem. temp change to warm is fast, 2 seconds, but back to cold, after letting off the gas, takes...


this is by design. under load, the computer will deactivate the air conditioning in order to take the load of the compressor off of the engine, thereby getting more power for required acceleration. the a c light will remain illuminated etc, and after you finish accelerating the air conditioning will resume normal operation.

Jun 26, 2010 | 2004 Ford Focus

1 Answer

Air works good but when you give it gas it gets hot air inside


this is by design. under load, the computer will deactivate the air conditioning in order to take the load of the compressor off of the engine, thereby getting more power for required acceleration. the a c light will remain illuminated etc, and after you finish accelerating the air conditioning will resume normal operation.

Jun 26, 2010 | 1999 Ford Explorer

3 Answers

How do you remove the heater core from a 1999


You do not have to remove the pedals, however by the service manual you are supposed to remove the steering column if you have not already.

Sep 13, 2009 | 1999 Plymouth Grand Voyager

2 Answers

No acceleration at high RPM's


It's probally the fuel cutoff.If it's in Park Or Nuetral this is a normal condition to protect the engine from overevving.If it doesn't do it in gear that's what it most likely is.hope this helps

May 16, 2009 | 1999 Pontiac Grand Am GT

1 Answer

2003 nissan altima rpm goes crazy (at 2 then drops to 0, back and forth)then it dies. it is doing it more frequently


I have also read in the service manual that doing an idle relearn helps with RPM problems. This is the procedure below. It is complicated to do unless you have a watch or something to count the seconds with.

DESCRIPTION
“Accelerator Pedal Released Position Learning” is an operation to learn the fully released position of the accelerator
pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time
harness connector of accelerator pedal position sensor or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch “ON” and wait at least 2 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.
Throttle Valve Closed Position Learning UBS002OA
DESCRIPTION
“Throttle Valve Closed Position Learning” is an operation to learn the fully closed position of the throttle valve
by monitoring the throttle position sensor output signal. It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch “ON”.
3. Turn ignition switch “OFF” wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume Learning UBS002OB
DESCRIPTION
“Idle Air Volume Learning” is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
 Each time electric throttle control actuator or ECM is replaced.
 Idle speed or ignition timing is out of specification.
PREPARATION
Before performing “Idle Air Volume Learning”, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
 Battery voltage: More than 12.9V (At idle)
 Engine coolant temperature: 70 - 95ーC (158 - 203ーF)
 PNP switch: ON
 Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.
 Steering wheel: Neutral (Straight-ahead position)
 Vehicle speed: Stopped

Apr 29, 2009 | 2003 Nissan Altima

1 Answer

Brake and gas pedals


The vehicle has a optional adjustable brake to increase driver comfort. The brake pedal position is changed in phase with the accelerator pedal. The system is adjusted by pressing the dash-mounted switch that powers the driver motor mounted on the accelerator pedal assembly. The two-way motor operates backward (away from the driver) or forward (toward the driver) to adjust the accelerator pedal directly and the brake pedal through the drive cable attached to the brake pedal assembly.
--------------------
  • Adjustable brake pedal inoperative
  • Switch.
  • Circuit.
  • Motor.
  • Cable.
  • Obstructions
------------------------------------
PINPOINT TEST D: ADJUSTABLE BRAKE PEDAL INOPERATIVE Test Step Result / Action to Take D1 CHECK MOTOR SOUND
  • Allow two minutes for the thermal overload to reset.
  • Operate the adjustable pedal control switch.
  • Can the adjustable pedal motor be heard to operate?
Yes
GO to D2 .

No
GO to D7 . D2 CHECK MOTOR INSTALLATION
  • Check adjustable pedal motor for correct installation.
  • Is the motor installation OK?
Yes
GO to D3 .

No
CORRECT the motor installation. TEST the system for normal operation. D3 CHECK ADJUSTABLE ACCELERATOR PEDAL SYSTEM
  • Disconnect the brake pedal-to-accelerator pedal cable.
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  • Operate the adjustable pedal control switch.
  • Does the adjustable brake pedal operate now?
Yes
INSTALL a new adjustable brake pedal assembly. REFER to Section 206-06 . TEST the system for normal operation.

No
GO to D4 . D4 INSPECT FOR FOREIGN MATERIAL
  • Inspect the adjustable accelerator pedal assembly for foreign material causing a binding condition.
  • Was any foreign material found?
Yes
REMOVE the foreign material. RETEST for normal operation.

No
GO to D5 . D5 CHECK CABLE
  • Detach the adjustable pedal motor cable.
  • Inspect the ends of the brake pedal motor cable for wear or damage.
  • Are the cable ends OK?
Yes
GO to D6 .

No
INSTALL a new accelerator pedal assembly. REFER to Section 310-02 . TEST the system for normal operation. D6 CHECK CIRCUITS FOR SHORT TO BATTERY
  • Key in OFF position. Adjustable Pedal Switch C290
  • Disconnect the adjustable pedal switch C290.
  • Measure voltage at C290-1 and C290-7.
  • Is the voltage greater than 0 V at either pin?
Yes
REPAIR the short to battery. TEST the system for normal operation.

No
GO to D7 . D7 CHECK POWER TO SWITCH
  • Measure the voltage at C290-2 circuit 490 (RD).
  • Is the voltage greater than 10 V?
Yes
GO to D8 .

No
REPAIR circuit 490 (RD). TEST the system for normal operation. D8 CHECK GROUND TO SWITCH
  • Measure resistance to ground at C290-3 circuit 57 (BK) and C290-6 circuit 57 (BK).
  • Is the resistance less than 5 ohms at both pins?
Yes
GO to D9 .

No
REPAIR the open circuit. TEST the system for normal operation. D9 TEST SWITCH
  • Connect fused jumpers between C290-1 and -2 and between C270-7 and -3.
  • Does the adjustable pedal motor run in both directions?
Yes
INSTALL a new adjustable pedal switch. TEST the system for normal operation.

No
GO to D10 . D10 CHECK SWITCH-TO-MOTOR CIRCUITS CONTINUITY
  • Connect: Adjustable Pedal Switch C290.
  • Disconnect: Adjustable Pedal Motor C2001.
  • Measure resistance to ground at both pins of the adjustable pedal motor connector, circuits 1494 (RD) and 1495 (WH).
  • Is the resistance less than 5 ohms at both pins?

Apr 24, 2009 | 2003 Mercury Grand Marquis

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