What is the camshaft sensor code on a Jeep Grand Cherokee?
My 2011 Grand Cherokee V6 has a check engine light with the Camshaft Position Sensor code (P0340). The car goes into limp mode now when the light comes on, but it has cleared on its own before.
How does the cam position sensor work on a 4 cycle engine?
The Cam position sensor is just for phasing. A 4 cycle engine, the spark and injector trigger every other crank rotation. The crank position sensor triggers on every rotation, so how does the PCM know if a particular cylinder is on the power stroke or the intake stroke?
What happens if the cam position sensor fails?
If the Cam position sensor fails, the PCM may guess which phase the crank is in. If it guesses right, then the engine runs like normal. If it guesses wrong, then fuel injectors and spark trigger 180° out of phase.
Can a cam sensor be replaced on a V6?
On most engines, the Cam Position sensor is cheap and quick to replace. Don’t know if its harder on this V6. But if it was me, if it was a matter of $25 and an hour to replace the Cam sensor, I would do it and see if it fixes the problem.
My 2011 Grand Cherokee V6 has a check engine light with the Camshaft Position Sensor code (P0340). The car goes into limp mode now when the light comes on, but it has cleared on its own before.
Can a crank and cam sensor be replaced?
I replaced both the cam and crank sensor and car still will not start but if I unplug the crank sensor it starts up and runs like crap. I can not figure out what to do next. My car has 91000 miles. My car has an automatic transmission. You should check to see if your vehicle has jumped timing.
If the Cam position sensor fails, the PCM may guess which phase the crank is in. If it guesses right, then the engine runs like normal. If it guesses wrong, then fuel injectors and spark trigger 180° out of phase.
The Cam position sensor is just for phasing. A 4 cycle engine, the spark and injector trigger every other crank rotation. The crank position sensor triggers on every rotation, so how does the PCM know if a particular cylinder is on the power stroke or the intake stroke?
I replaced both the cam and crank sensor and car still will not start but if I unplug the crank sensor it starts up and runs like crap. I can not figure out what to do next. My car has 91000 miles. My car has an automatic transmission. You should check to see if your vehicle has jumped timing.
What happens when the camshaft position sensor fails?
Once your car’s computer detects a CMP sensor failure, it will trigger the engine light and store a diagnostic trouble code (DTC) in its memory (see the table below for common camshaft position sensor trouble diagnostic codes). As you may expect, the specific location of the camshaft position sensor varies by a vehicle’s make and model.
How are the crankshaft and camshafts held together?
Permanent magnet: creates an AC voltage signal that is proportional to engine speed. Hall Effect: uses a reference voltage from the PCM to produce a DC voltage signal. Inside the engine, the crankshaft and camshaft are held together by a timing belt or timing chain, which keeps them synchronized.
Is there a lifter failure on a Jeep Grand Cherokee?
This topic contains 4 replies, has 4 voices, and was last updated by EricTheCarGuy 1 year ago. Lifter failure of the Jeep Grand Cherokee 5.7L MDS hemi engine appears to be a pattern failure and a very expensive fix.
Why is my camshaft sensor not working on my Jeep Grand Cherokee?
Called Chrysler to see if it had any recalls and they said there were none. . Then had it scanned read p0340 camshaft sensor had that replaced still did not work. . The mechanic called two days later and said that it was the tipm module and had it towed over to the dealership. .
Once your car’s computer detects a CMP sensor failure, it will trigger the engine light and store a diagnostic trouble code (DTC) in its memory (see the table below for common camshaft position sensor trouble diagnostic codes). As you may expect, the specific location of the camshaft position sensor varies by a vehicle’s make and model.
Is there a problem with the Jeep Grand Cherokee?
Someone from Wilson, North Carolina wrote about how the issue sprang up on their 94,000 mile Grand Cherokee: The biggest defect with the car is the V-8 hemi cam shaft and lifters. Every mechanic I have taken my car too has said that Jeep knows it is a problem but will not fix.
This topic contains 4 replies, has 4 voices, and was last updated by EricTheCarGuy 1 year ago. Lifter failure of the Jeep Grand Cherokee 5.7L MDS hemi engine appears to be a pattern failure and a very expensive fix.
On most engines, the Cam Position sensor is cheap and quick to replace. Don’t know if its harder on this V6. But if it was me, if it was a matter of $25 and an hour to replace the Cam sensor, I would do it and see if it fixes the problem.
What happens if the camshaft position sensor is wrong?
If it guesses right, then the engine runs like normal. If it guesses wrong, then fuel injectors and spark trigger 180° out of phase. If an engine has a wasted spark ignition system (I don’t know on the Pentastar 3.6L V6, but many Chrysler engines do, including the HEMI).
What is the sensor on a Jeep Grand Cherokee?
Most times it will restart on its own but lately it has taken longer to restart. The crankshaft position sensor, throttle position sensor, idle air control valve, coil, sparlk plugs, spark plug wires, distributor cap, rotor and cam shaft position sensor have all been changed or checked.
How to install a cam sensor on a jeep?
Pull all the spark plugs out so she rolls over easy. Put your finger into #1 cylinder or use a compression tester with a removable head (so all you have is the hose threaded into the #1 spark plug hole). Turn the engine over using a socket on the crank or alternator if the alternator is easier to reach.
Where do you put the compression tester in a jeep?
Put your finger into #1 cylinder or use a compression tester with a removable head (so all you have is the hose threaded into the #1 spark plug hole). Turn the engine over using a socket on the crank or alternator if the alternator is easier to reach.
Why is my turn signal not working on my Jeep Grand Cherokee?
When the right turn signal is on the fog lights flash and the turn signal does not blink. When I turn the fog light button on my turn signal lights up but does not blink. Took it to the dealer and they said it was the tipm that was faulty.
How to calculate the advance of the camshaft?
To determine the amount the camshaft is advanced in crankshaft degrees, simply subtract the difference between the intake and exhaust Top Timing and divide by two. In this case 37° – 29° = 8° ÷ 2 = 4 crankshaft degrees of advance. To obtain the actual amount of advance or retard in camshaft degrees,…
What is the purpose of Cam degreeing in an engine?
The purpose of checking or degreeing-in the camshaft in the engine block is to determine whether or not the camshaft is installed in the correct relationship or phasing with the crankshaft. However, the most important step in phasing a camshaft is finding absolute T.D.C. of the #1 cylinder piston.
To determine the amount the camshaft is advanced in crankshaft degrees, simply subtract the difference between the intake and exhaust Top Timing and divide by two. In this case 37° – 29° = 8° ÷ 2 = 4 crankshaft degrees of advance. To obtain the actual amount of advance or retard in camshaft degrees,…
The purpose of checking or degreeing-in the camshaft in the engine block is to determine whether or not the camshaft is installed in the correct relationship or phasing with the crankshaft. However, the most important step in phasing a camshaft is finding absolute T.D.C. of the #1 cylinder piston.
How is the camshaft connected to the crankshaft?
The camshaft is connected via the timing chain and sprockets at a 1:2 ratio to the crankshaft and therefore revolves once for every two turns of the crank. Its purpose is to operate the intake and exhaust valves in the correct timing with the piston as it sequences thru the four strokes.
How did the development of cams improve power?
By experimentation, the more progressive cam engineers of the 1910’s and 1920’s discovered that the midrange and high-speed power could be greatly improved by lengthened valve timing.