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How Does the Evaporative Emissions System Work | EVAP Codes

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If the gas cap is not fixing it, then you have an EVAP system leak. Possibly a bad purge valve or vent valve. The check gas cap light comes on because the computer senses a leak,but cannot determine what it is. A large leak acts like a gas cap loose or missing, and is a common thing to happen, so thats why the system has this warning. More ...

P0401 EGR System Insufficient Flow Detected | Engine Misfire

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If you have an electronic EGR valve that you want to test because of a P0401 code in the computer, then you’re going to need to get your hands on a scan tool that has bidirectional control. That means you can not only view data but also tell the onboard computer on the vehicle to run certain tests through the scanner software.

SOLVED: I have a 97 grand prix which I had just replace ...

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To fix simply unplug each sensor one at a time until the 5 Volt reference reappears. The last sensor unplugged is the shorted sensor.) 2. If you have a 5 Volt reference at the MAP connector, jumper the 5 volt reference circuit to the signal circuit. Now check the MAP voltage on the scan tool. It should be to 5 Volts. If it is, replace MAP ...

97 Pontiac Grand Prix mass air flow problem Car Forums ...

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Jul 17, 2014· 97 Pontiac Grand Prix mass air flow problem Grand Prix Car ... the MAF sensor must match your year GP and engine. You cannot use a MAF sensor for 1999 and up. jtechnical. 08062006, 09:28 PM ... I have 1997 grand Prix with with same problem I change crank sensor Thames throttle control valve seal and mass air flow sensor and fix the ...

Grand Am Shuts off for No Reason while driving.... Car ...

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Jan 23, 2018· When driving down the road my 2000 grand am gt will cut off for no apparent reason. It is very dangerous and after it shuts down it takes at least 20 mins. to start up again. This is exactly what happens: the car will shut off, (but the radio, lights, and everything will still work), yet the steering wheel locks up and gas peddle will not work.

Evaporative Emission Control System (EVAP) Function ...

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Aug 07, 2021· A common cause of this is, a loose gas cap. So, if you’ve recently filled up on fuel, check that the gas cap is fully tightened. Consequently, if the Check Engine light (CEL) remains on after checking the gas cap, there may be a bigger problem. Evaporative Emission Control System (EVAP) Components: Fuel Tank; Fuel Cap; LiquidVapor Separator

Symptoms of a Bad MAP Sensor, and How to Test One

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Sometimes you need to remove the air cleaner assembly to gain access to it. The auto parts person at your local area may be able to tell you the location in your particular model. Question: I have a 2000 Grand Cherokee Limited 2x2. Since I bought it, I’m having the problem of it dying while driving and leaving me stranded for 5 minutes to ...

97 grand prix gtp wont start, Pontiac Grand ... CarGurus

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97 grand prix gtp wont start. mph. The steering went tight along with the breaks being. harder to press down. It had a half a tank of gas. Car has. 175k …

Pontiac Grand Prix: Bad O2 Sensor → Symptoms and …

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May 31, 2019· Grand Prix Bad O2 Sensor Symptoms Causes: Conclusion There may or may not be any noticeable symptoms when your Pontiac Grand Prix’s oxygen sensor(s) go bad. It is smart to use a scan tool to determine whether or not there is an OBDII trouble code associated with any of the sensors.

Pontiac Warning Lights and Symbols |

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The following are warning lights and indicators found in vehicles built by Pontiac. Click a link to learn more about each one. They are roughly ordered by importance, which tends to be by color (red, amber, yellow, orange, green, blue). There are over 40 of them, so search carefully! Serious trouble or fault indicators.

Fusible Links: What Are They and Where Do They Go ...

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Nov 17, 2017· Fusible links—also spelled fuseable and fusable—serve a similar purpose to a fuse. (You can read more about fuses here.). Just like a fuse, the link is designed to handle a lower current (amp) load than the rest of the system so, in the event of a short or overload, the link will be the first failure point.

Sensors, Switches Relays | Canadian Tire

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The antilock braking system uses an ABS or wheel sensor to monitor the wheel speed and send this information to the ABS computer. View Details. Coolant Temperature Sensor. (1) out of 5 stars. 1 review. BWD Coolant Temperature Sensor products are tested and inspected in an ISO 9000compliant environment.

How to Change a Fuel Level Sensor |

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Jun 11, 2010· Remove the clip from the harness and slide off the sensor. Step 5 – Fit New Sensor. When you purchase a new fuel level sensor, be sure to consult with your vehicle''s owner''s manual, or with a store associate, to make sure you''re buying the right part. Install a new gas level sensor by sliding it into the old one''s place.

How to Tell if You Have a Faulty Coolant Temperature Sensor

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Apr 10, 2012· The coolant temperature sensor, abbreviated as CTS, in your car is an important device that enables the control unit to give alerts if the engine is overheating or if the temperature within the system is rising for some reason. The Coolant Temperature Sensor''s Function. This device works on the principle of dependence of potential difference in temperature.

General Motors Fuel Gauge Troubleshooting | American Autowire

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If you DO have 12 volts to the fuel gauge, the next step is to remove the fuel sending unit wire, and, with the ignition key “on”, ground the sender wire to a good chassis ground. The fuel gauge should immediately go to empty. Removing the sending unit wire from the chassis ground the fuel gauge should go directly to “full”.

How to Change a Fuel Level Sensor |

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1) Procedure must be performed if any of the following have been done or exist: * EEPROM was reprogrammed. * If Diagnostic Trouble Code (DTC) P1336 exists. * If crankshaft, crankshaft position sensor, engine, Powertrain Control Module (PCM) or vibration damper have been replaced. 2) CKP sensor variation compensating values are stored in

Part 1 Testing the Ignition Module and Crank Sensor (GM 3 ...

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Apr 13, 2009· 5. This article will help you test the ignition control module (ICM) and 3X crankshaft position sensor on all of the GM and overhead valve engines (the 3X crank sensor is also known as the 7X Crank Sensor). So, if you''re driving a Chevy, a Buick, a Pontiac, or an Oldsmobile with either one of these engines, not forgetting the Isuzu ...

Symptoms of a Bad Fuel Tank Pressure Sensor

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Jul 13, 2019· This sensor is an integral part of your car’s evaporative emissions system, also known as EVAP. The EVAP system is designed to keep all gasoline vapors within your car’s fuel system, after you have fueled it up at the gas station. Signs of a bad fuel tank pressure sensor. If the sensor itself is bad, there’s really only one thing that ...

Part 1 How Can I Tell If My Automatic Transmission Needs ...

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Nov 25, 2012· Now, although in this article I won''t be showing you how to tear down your transmission, it will help you to find out if your electronically controlled 4T60E (or 4T65E) transmission issue, in your , , or V6 GM vehicle, is due to a malfunctioning shift solenoid/sensor or internal damage.

Symptoms of a Bad or Failing Camshaft Position Sensor ...

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Jan 05, 2016· 1. Vehicle does not drive like it used to. If your vehicle idles roughly, stalls frequently, has a drop in engine power, stumbles frequently, has reduced gas mileage, or accelerates slowly, these are all signs your camshaft position sensor could be failing. If you have any of these symptoms, it could mean the camshaft position sensor needs to ...

How do you adjust the fuel injectors on a 97 cavaliers ...

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Mar 06, 2009· You just changed your plugs and wires on your 97 grand prix gtp and you are getting worse gas milage what could be wrong? check your air filter, mass airflow sensor, egr valve, or fuel injectors

OBD1 Codes Trouble Code List Reading (GM 2021)

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Jan 17, 2021· The connector may have a black plastic cover, which you have to remove before accessing it. The connector is often black and has 12 pins on it; pretty easy to identify. Check the image above to see what an OBD1 connector looks like. OBD1 Connector Wirings Pinout. The OBD1 connector has 12 pins, but not all of them are used in most car models.

Engine coolant temperature sensor: how it works, symptoms ...

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Jul 18, 2021· For example, as per the service bulletin 0500212 for the 2011 Dodge Journey with the engine, to repair the trouble codes P0117 (Engine Coolant Temperature Sensor Circuit Low) or P0118 (Engine Coolant Temperature Sensor Circuit High), the brake booster vacuum hose that was routed too close to the ECT sensor connector must be replaced.

Have To Turn The Ignition Three or Four Times To Get Car ...

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By turning the key several times, you are priming the fuel system up enough to start the vehicle, so you definitely have a fuel issue. Also possibly a leaking fuel pressure regulator (FPR) causing a rich condition. I have a 2004 pontiac grand prix gt1 and i seem to have a similar problem. It turns over like its going to start and then just sits ...

4L80E Transmission Troubleshooting Guide

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Throttle Position (TP) Sensor. The Throttle Position (TP) sensor is a potentiometer, a device for measuring an unknown voltage or potential difference by comparison to a standard voltage. The TP sensor sends a voltage to the TCM, varying from volts to approximately volts. This voltage signal to the TCM represents throttle ...

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