There are two camshaft position sensors in the 2005 Chevy Colorado. Both are located on the front of the engine above the serpentine belt. CMP Sensor 1 is on the left side and CMP Sensor 2 is on the right. They both are held to the engine with a 10-milimeter bolt and an electrical connector has to be unplugged before removing. The sensors monitor the position of the intake and exhaust valves and enables the engine control to determine the exact position of the crankshaft drive. This information is needed to calculate when the fuel is injected into the cylinder and when the spark plugs are fired to ignite the fuel. If the sensors are bad the engine performance will go down. Show The camshaft position sensor is located at the front top of the engine underneath the timing cover. accountCircle Kelley S. April 9, 2020 The crankshaft position sensor on a 2005 chevy colorado, is located on the front of the engine behind the harmonic balancer. The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. VehicleHistory.com does not research or authenticate any of the Answers provided.
The crankshaft position (CKP) sensor on the 2004-2006 2.8L Chevrolet Colorado (GMC Canyon) is a simple two-wire variable reluctor type sensor you can easily test with a multimeter resistance test. In this tutorial, I'll explain how to perform the CKP sensor multimeter resistance test step-by-step. I'll also explain how to performance-test the CKP sensor in action. APPLIES TO: This tutorial applies to the following vehicles:
WIRING DIAGRAMS:
Symptoms Of A Bad CKP SensorGenerally, when the CKP sensor fails, it'll stop creating a CKP signal due to an internal short-circuit problem or an open-circuit problem. Since the CKP sensor is monitored by the fuel injection computer the entire time your Chevrolet Colorado or GMC Canyon's engine is cranking or running, when it fails, the PCM will:
You'll see one of the following CKP sensor diagnostic trouble codes stored in the PCM's memory:
In some cases, the CKP sensor will fail intermittently. In other words, it'll work fine most of the time, but then it won't. If your 2.8L Chevrolet Colorado (GMC Canyon) is experiencing an intermittent no-start problem, you'll need to test the CKP sensor when the engine is not starting. Otherwise, the CKP sensor will always test good. Where To Buy A CKP Sensor And SaveThe crankshaft position (CKP) sensor isn't an expensive component. Still, it's important you avoid buying a knock-off sensor. Here are my recommendations of known automotive brands: Important 2.8L CKP Sensor Testing SuggestionsThe CKP sensor isn't one of the most accessible components on your 2.8L Chevrolet Colorado or GMC Canyon's engine. The inaccessibility of the CKP sensor complicates testing it, and for the most part, you have one of three options when troubleshooting a bad CKP sensor:
OPTION 1: Replacing the CKP sensor without testing it to see if the problem goes away seems to be the de facto way of diagnosing the CKP sensor for many. For most folks, this makes sense for two simple reasons:
OPTION 2: If you need to make sure the CKP is bad (before replacing it), the quickest and easiest way to find out is to remove it and bench-test it. TEST 1 explains how to do this in detail. This method still has its possible complications because the CKP sensor or its rubber seal may get damaged/destroyed when removing it. If this happens, you'll need to replace the CKP sensor even if it tests good. OPTION 3: The on-car performance test of the CKP sensor is a bit more involved. In a nutshell, you would have to:
In TEST 2, you'll find the on-car performance test of the CKP sensor described in detail. TEST 1: Checking CKP Sensor Resistance With A MultimeterAll right, you'll test the resistance of the CKP sensor with your multimeter in Ohms mode. The result of your resistance test should indicate the CKP sensor hasn't suffered an internal short-circuit problem or an open-circuit problem. Specifically, if your multimeter test result indicates:
If you're wondering, the CKP sensor internal resistance value (specification) is: 1.3K to 1.7K Ohms. IMPORTANT: You'll need to raise your vehicle and place it on jack stands to access the CKP sensor. Don't trust the jack alone to keep the vehicle up in the air while you work underneath it. Let's get started:
Let's analyze your test result: CASE 1: The CKP sensor's resistance is within specification. This is the correct and expected test result, and it tells you the CKP sensor is OK. Although not necessary, you can further confirm the CKP sensor is good by performing TEST 2. Go to: TEST 2: Testing The CKP Sensor's Output With A Multimeter. CASE 2: The CKP sensor's resistance IS NOT within specification. This test result confirms the crankshaft position sensor is bad and needs replacement. Although not necessary, you can further confirm the CKP sensor is bad by performing TEST 2. Go to: TEST 2: Testing The CKP Sensor's Output With A Multimeter. CASE 3: The CKP sensor's resistance 0 Ohms. This test result confirms the crankshaft position sensor has an internal short-circuit problem and needs replacement. CASE 4: The multimeter shows the letters OL as the CKP sensor's resistance value. This test result confirms the crankshaft position sensor has an internal open-circuit problem and needs replacement. What are the symptoms of a failing crank sensor?5 Signs of a Failing Crank Sensor. Crank Sensor Problems Could Make it Hard to Start Car. One sign that your crankshaft sensor might be failing is if you find it hard to start your vehicle. ... . Engine Vibration Issues. ... . Fuel Economy Slippage. ... . Uneven Acceleration. ... . Check Engine Light On.. Where is my crankshaft position sensor located?The Crankshaft Position sensor is normally located in the timing cover or on the side of the block with a cylindrical portion that inserts into the block. Will a malfunctioning Cam or Crank Sensor illuminate the check engine light or affect vehicle operation?
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