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What causes P1870?

What causes P1870? The GM transmission fault code P1870 is particularly serious, because it typically indicates functionality problem. When the vehicle exceeds acceptable RPM parameters before a shift occurs, this transmission DTC will be set. What's the history code for DTC p1870? ......DTC P1870 is a type B code. The conditions for setting the P1870 DTC must occur on TWO CONSECUTIVE TRIPS (ignition cycles, with a drive cycle) before setting a P1870 history code. ......When the conditions for setting DTC P1870 are met (first trip), the PCM commands maximum line pressure and harsh 1-2 shifts are the result. What causes...
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What does a trouble code on a car mean?

What does a trouble code on a car mean? Modern vehicles have internal computers that not only control the overall performance of your car, truck or SUV, but they also alert you to a problem by generating trouble codes. Of course, if your vehicle’s computer produces one, you need to know what your trouble code means. Can a sensor be replaced with a trouble code? Remember that most trouble codes refer to a specific circuit and replacing the sensor without confirming it is bad, may not solve the problem. What is the code for cylinder 8 misfire? Ive also had...
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Is it normal for your truck to rev up when you turn AC on?

Is it normal for your truck to rev up when you turn AC on? When the engine is put under a load by the AC system, the car's computer automatically attempts to compensate for that by adjusting the idle. If there is carbon buildup within any part of the system, including the idle air control valve, throttle body, or possibly even the EGR valve, it can cause surging. Why does the a / C go out after 20 minutes? Sometimes it will go out again after 20 minutes and sometimes it will work fine for an hour + ride. I...
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What is evaporative emission system code?

What is evaporative emission system code? Diagnostic trouble code (DTC) P0456 stands for “Evaporative Emission System (EVAP) Small Leak Detected.” Your car's computer will set this code when it determines that there's a minor leak somewhere in the evaporative emissions control (EVAP) system. What does the error code p0440 stand for? The error code P0440 is associated with an evaporative emission control system malfunction. It indicates that there is a part of the EVAP control system not functioning as it should. The EVAP system is comprised of different parts which include the gas cap, carbon canister,... What does p0443 mean...
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When did the Chevy Corsica 5 door hatchback come out?

When did the Chevy Corsica 5 door hatchback come out? A 5-door hatchback model was introduced for 1989, as was an LTZ performance package that included many suspension parts from the Beretta. A rare XT trim included all the performance parts from the LTZ trim as well as a leather interior, special body kit and spoiler package designed for GM by a third party supplier. Which is the only trim level of the Chevrolet Corsica? The only trim level was the LT. The manual transmission was dropped for the V6; it remained available for the four-cylinder engine, although it was...
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Is there a problem with the 8 speed transmission on a Chevy Silverado?

Is there a problem with the 8 speed transmission on a Chevy Silverado? The problem: in affected Chevy Silverado 1500 and GMC Sierra 1500 units, the eight-speed automatic transmission (RPO MQE) may have a broken reaction carrier ring. The hazards: a reaction carrier is part of the transmission rotating assembly and is an important aspect of its operation. Are there transmission problems in the 2015 Chevy Silverado? 2015 Chevrolet Silverado Transmission Problems!! - YouTube If playback doesn't begin shortly, try restarting your device. Videos you watch may be added to the TV's watch history and influence TV recommendations. To avoid...
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What happens when a cruise control release switch is damaged?

What happens when a cruise control release switch is damaged? A faulty clutch release switch that is closed does not allow the electrical signal to be sent to the cruise control relay that activates the cruise control on the vehicle. Cruise control does not set: When the cruise control clutch switch is damaged, it does not permit the electrical circuit to complete to the system relay. What's the best way to change the cruise control? Step 3: Drive to a highway. Drive your vehicle to a highway where you can drive smoothly for at least 10 to 15 minutes with...
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Can a cylinder head gasket leak be detected?

Can a cylinder head gasket leak be detected? Cylinder head gasket leaks, can cause a variety of problems; that no one is ready to deal with. First of all, you can not see the cylinder head gasket; without removing the cylinder head. So, actually finding where the, cylinder head gasket leaks are, can be difficult. What causes a cylinder head to leak coolant? So, with little to no lubrication the first thing to wear out, are the engine bearings. Along with this, you could hear, lifter ticking noise. NOTE: An internal coolant leak doesn’t always mean the head gasket is...
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What to do if your Chevy 350 engine wont start?

What to do if your Chevy 350 engine wont start? Start the vehicle. If the vehicle starts, there is a fuel problem. If you have a mechanical fuel pump and the lines are not clogged, replace the mechanical pump. If you have an electric fuel pump, check the relay. If the relay is bad, replace it. If the relay is good, check for power at the electric fuel pump. What should voltage be to start Chevy 350? If the voltage is below 12.00, the battery needs to be charged before further testing. Start the vehicle after charging the battery. Touch...
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Why is my air conditioner condensate pump not working?

Why is my air conditioner condensate pump not working? The reason this happens is a safety measure to prevent the pump’s water reservoir from overflowing and causing puddles all around your home. If your condensate pump is not pumping water out or not working as it should, follow these step by step directions. Step 1. Turn off your air conditioner. What happens when you press the AC button? If the vehicle is equipt with an ambient air temperature display, the sensor also prevents the AC clutch from engaging if the outside air is below as certain tempreture. To test, turn...