1997 Honda Civic Support Question
1997 Honda Civic Support Question
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Question posted by Anonymous-173977 on April 12th, 2023
Pulsating At Idle
Engine revs at idle from 800 to 1600 rpm
Current Answers
Answer #1: Posted by SonuKumar on April 12th, 2023 8:39 AM
SonuKumar
Member since:
May 9th, 2021 Points: 16,598,000
Member since:
May 9th, 2021 Points: 16,598,000
If your 1997 Honda Civic's engine is revving at idle from 800 to 1600 RPM, it could be an indication of several potential problems:
- Vacuum leaks: A vacuum leak can cause the engine to idle erratically or rev high. Check for disconnected or damaged vacuum hoses or intake manifold gaskets.
- Dirty or clogged idle air control valve (IACV): The IACV controls the idle speed by regulating the amount of air that bypasses the throttle plate. A dirty or clogged IACV can cause the engine to rev high or stall at idle.
- Faulty throttle position sensor (TPS): The TPS informs the engine control module (ECM) of the position of the throttle plate. A faulty TPS can cause the engine to idle erratically or rev high.
- Malfunctioning ECM: The ECM is responsible for controlling the engine's idle speed. If it's not functioning properly, it may cause the engine to rev high or stall.
- Sticky or dirty throttle body: The throttle body controls the airflow into the engine. If it's dirty or sticking, it can cause the engine to idle erratically or rev high.
If you're not comfortable troubleshooting these potential problems yourself, it's best to take your Honda Civic to a qualified mechanic for diagnosis and repair.
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
Regards,
Sonu
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Related Manual Pages
Owner's Manual - Page 1
... load luggage and other cargo. Technical Information ...201 ID numbers, dimensions, capacities, and technical information. Warranty and Customer Relations (U.S. only) ...219 How to start the engine, shift the transmission, and park, plus towing a trailer. Use these links (and links throughout this manual) to operate the climate control system, the audio system...
Owner's Manual - Page 17
... and control unit must have an authorized Honda dealer service the system. If either of the following happens, you see any objects on after the engine starts.
If you must be propelled inside the car and possibly hurt someone. Do not try to your convenience, the car's production date is on...
Owner's Manual - Page 29
...parked car, even in an unconfined area, with the trunk lid open, open , run the engine with carbon monoxide entering the car in an accident that expose you .
If you maintain your... condition. High levels of the garage. Select the Fresh Air mode. 2. Do not run the engine only long enough to a comfortable setting. Driver and Passenger Safety You should have damaged the underside....
Owner's Manual - Page 35
...comes on at any other time, there is a problem in the ABS. Low Oil Pressure Indicator The engine can indicate that you release the parking brake, or comes on while driving, it checked. Parking Brake...after you have it can be severely damaged if this light comes on when the engine is running . Malfunction Indicator Lamp See page 193. Indicator Lights
Charging System Indicator If this light ...
Owner's Manual - Page 36
... cannot see page 166). When you are signalling. Some road or traffic conditions may require you set the cruise control. The light will keep the engine operating in its most economical point to upshift your road speed, and by using light to moderate pressure on cars equipped with manual transmission The...
Owner's Manual - Page 37
...rpm). To reset it . TACHOMETER
TRIP METER
SPEEDOMETER
FUEL GAUGE
TEMPERATURE GAUGE
ODOMETER
MAINTENANCE REQUIRED INDICATOR
TRIP METER RESET BUTTON
Speedometer
U.S. Canadian Models
Tachometer On HX and EX models in the U.S., and Si model in Canada The tachometer shows the engine...of miles or kilometers indicated.
To protect the engine from damage, never drive with the intent to...
Owner's Manual - Page 38
... long period of the road. It is most accurate when the car is on checking the engine's cooling system. Instruments and Controls
If it reaches the red (Hot) mark, pull safely to... the upper blue zone. Turn to about the middle of the engine's coolant.
TEMPERATURE GAUGE
TRIP METER
SPEEDOMETER
FUEL GAUGE
ODOMETER
MAINTENANCE REQUIRED INDICATOR
TRIP METER RESET ...
Owner's Manual - Page 70
...heater and air conditioning to them.
Comfort and Convenience Features The engine must be several minutes before you feel warm air coming from the system. The air conditioning ...System This section covers how to warm the air.
The heater uses engine coolant to set up -and-down and side-toside. If the engine is cold, it will be running for ventilation, heating, cooling, dehumidifying...
Owner's Manual - Page 72
... BUTTON
1. If the interior is very warm from being parked in the button should come on the engine. Turn on the A/C by setting up the controls this way: 1. Open the windows partially.
If...moves near the red zone, turn off the A/C until the gauge reads normally. Start the engine. 2. Watch the engine coolant temperature gauge (see page 38) when driving in stop-and-go traffic or climbing a...
Owner's Manual - Page 73
.... 4. Set the fan to Fresh Air mode and turns on . Adjust the temperature control lever so the mixture of the windows: 1. Turn on . 2. Start the engine. 2. Switch the fan on the air conditioning. 3. When used in combination with the temperature control lever. Heating and Cooling
To Heat To warm the interior: 1.
Owner's Manual - Page 74
... been sitting out in cold weather: 1. MODE BUTTONS
RECIRCULATION BUTTON
AIR CONDITIONING BUTTON
TEMPERATURE CONTROL LEVER
FAN CONTROL LEVER
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To remove exterior frost or ice from the windshield (on the A/C. 3.
Owner's Manual - Page 75
... will send more warm air to the windshield defroster vents. This will get warmer and clear the windows faster as the engine warms up. You should shut the system completely off the system temporarily, slide the fan speed and temperature control levers all...vents at all other times so stale air does not build up in cold weather, until the engine coolant warms up enough to operate the heater.
Owner's Manual - Page 96
... (see page 36). To cut down and speed up faster, and you get . Depending on the engine which uses fuel. Turn off the A / C to increase fuel economy. Every time you get better...warm up , your speed and road conditions. Always drive in top operating condition. The engine will keep it idle for your car uses extra fuel. Use the cruise control, when appropriate, to cut ...
Owner's Manual - Page 103
...
Maximum Speeds The speeds in and out. If you reduce the RPM below the red zone. (DX) (U.S.: EX, Canada: Si)
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Owner's Manual - Page 106
...to a complete stop briefly with the engine idling. Use this position for any reason. Neutral (N) - This helps the engine warm up at higher speeds when the engine is similar to shift into Reverse from...only the first three gears are moving the shift lever from Neutral, come to provide engine braking when going clown a steep hill. D3 can get the transmission to automatically downshift ...
Owner's Manual - Page 107
... come to first gear when you more power when climbing, and increased engine braking when going down steep hills. This position locks the transmission in the engine's computer controls. Maximum Speeds The speeds in deep snow. Whenever you reduce the RPM below the red zone. (DX) (U.S.: EX, Canada: Si)
Driving Use second gear...
Owner's Manual - Page 111
... " to a lower range of the shift lever. Driving Press on the side of ratios by pushing the accelerator pedal to a complete stop briefly with the engine idling. Second (S) - Low (L) - Drive (D) - Use Neutral if you are moving the shift lever from Neutral. Always shift to leave the car for your normal driving. To...
Owner's Manual - Page 116
... ABS activate immediately if you are braking hard. However, you may require a longer distance to stop on snow or ice. A vehicle with ABS may feel a pulsation in the brake pedal when the ABS activates, and you may hear some noise. ABS will not prevent a skid that results from other vehicles. Driving...
Owner's Manual - Page 126
... of stop-and-go driving. Maintenance Schedule (Severe Conditions)
Follow the Severe Maintenance Schedule if you drive your vehicle MAINLY under special driving conditions. Extensive idling or long periods of the following conditions: Driving less than 5 miles (8 km) per trip or, in freezing temperatures, driving less than 10 miles (16 km...
Owner's Manual - Page 187
... cable to make sure they have an assistant start that car and run it at a fast idle.
6.
Start your Honda's battery.
4. If the starter motor still operates slowly, check the jumper...BOOSTER BATTERY
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