How to troubleshoot no start in a 2001 Chevy Astro van?
How to troubleshoot no start in a 2001 Chevy Astro van?
Disconnect the coil wire at the ignition coil, and try to start the engine. If no spark occurs, replace the coil and ignition module. If a strong spark occurs, plug the wire back in, and remove a spark plug wire from a spark plug and repeat the test. If a spark is not present, replace the spark plug wires, and distributor cap and rotor.
Where is the fuel pump on a Astro van?
If it is good, check for power at the fuel pump electrical connector located near the rear of the fuel tank on the driver’s side of the van. In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when the engine is being cranked.
What should battery voltage be in Astro van?
A measurement of 12.5 volts is considered discharged, and the battery should be charged before any further testing. Any measurement below 11 volts indicates a severely discharged battery–the battery is most likely damaged and should be replaced. If the battery measures above 12.7 volts, proceed to the next step.
Why does my car not start when I start it?
There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start…it’s because one of these components is missing from the mix.
What causes a car to not start with no spark?
Without spark, the engine will Crank but Not Start. The ignition system of the GM vehicles covered by this article use a distributor type system. In my experience, the most common component failures, of the ignition system that cause a No Start No Spark Condition are: Distributor cap. Crank sensor.
How to troubleshoot a GM 4.3L no start?
Check that the 8 cylinders are getting spark with a spark tester. The distributor cap is good. The ignition coil is good. The ignition control module is good. The crankshaft position sensor is good. The distributor cap could be bad. The ignition coil to distributor cap high tension wire could be bad. The ignition coil could be bad.
How to test the no start ignition system?
Testing the distributor cap, the ignition coil to distributor cap high tension wire, the ignition coil, the ICM, and the crank sensor can by done by the do it yourself-er (DIY’er) and the following tutorials will help you test the ignition system: How To Test A Misfire / No Spark No Start Condition (at: easyautodiagnostics.com ).
How to troubleshoot a no start GM 4.3L pick up?
Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.
What causes a car to have a no start condition?
The engine pistons and valves (and all the other related components like: timing chains, etc.) are the ones responsible for the induction of the fresh air the engine needs for the combustion process. Although rare, internal engine mechanical problems can and do cause no-start conditions. Blown head gasket. Blown engine. 4.)
Are there any problems with the Chevy 4.3 Vortec engine?
The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once. The pockets burn in even timing, in sync with engine cycles. Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles.
What causes a Chevy Vortec distributor to not turn?
The cap is prone to warping from the heat, which results in the cap rubbing against the distributor rotor button. This causes the rotor bushing to wear out and the distributor begins to no longer be able to turn. The simplest option here to fix this problem is upgrading to a distributor that has an aluminum housing on it.
What does it mean when your car has no spark?
No spark indicates an ignition problem. In extreme cases the (PCM) may have failed. In some cases, a (PCM) problem will cause the vehicle not to run at all. The (PCM’s) functions include positioning the crankshaft and controlling the ignition spark and timing.
Disconnect the coil wire at the ignition coil, and try to start the engine. If no spark occurs, replace the coil and ignition module. If a strong spark occurs, plug the wire back in, and remove a spark plug wire from a spark plug and repeat the test. If a spark is not present, replace the spark plug wires, and distributor cap and rotor.
If it is good, check for power at the fuel pump electrical connector located near the rear of the fuel tank on the driver’s side of the van. In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when the engine is being cranked.
Without spark, the engine will Crank but Not Start. The ignition system of the GM vehicles covered by this article use a distributor type system. In my experience, the most common component failures, of the ignition system that cause a No Start No Spark Condition are: Distributor cap. Crank sensor.
A measurement of 12.5 volts is considered discharged, and the battery should be charged before any further testing. Any measurement below 11 volts indicates a severely discharged battery–the battery is most likely damaged and should be replaced. If the battery measures above 12.7 volts, proceed to the next step.
What to do if your starter doesn’t turn?
If battery voltage is present at the purple wire, and the starter doesn’t turn, replace the starter. If the voltage measurements at the starter are correct, and the starter cranks the engine over when the key is turned to the start position, proceed to the next step.
Why does my 2001 Astro van not start?
by Lee Sallings. The three most common causes of a no-start condition in your 2001 Chevy Astro van are starting/charging system failure, ignition system failure and fuel system failure.
If battery voltage is present at the purple wire, and the starter doesn’t turn, replace the starter. If the voltage measurements at the starter are correct, and the starter cranks the engine over when the key is turned to the start position, proceed to the next step.
How to change spark plugs and wires on Astro?
An error occurred. Please try again later. (Playback ID: DdFxO753AQV0s7td) An error occurred while retrieving sharing information. Please try again later.
Can a new engine start with no spark?
No Spark?: I Just Put a New Motor in My Truck. Due to a Blown No spark? I just put a new motor in my truck. Due to a blown motor. I’ve put a long block in. Got everything put back and tried to start but will not fire. Have fuel but no fire. have the same problem? Have you tried pulling diagnostic codes?
An error occurred. Please try again later. (Playback ID: DdFxO753AQV0s7td) An error occurred while retrieving sharing information. Please try again later.
How to know if your engine has no spark?
First Confirm Your Engine Has No Spark. 1 Disable the fuel system by removing the fuel pump fuse or relay. 2 Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. 3 Finally, Have someone crank the engine and watch for spark.
What causes a car to stall with no spark?
Consequently, An old or failing ignition pickup may cut out signal intermittently, which may cause the engine to stall. The engine may suddenly just shut off, almost as if the key had been turned off. Depending on the nature of the issue, sometimes the vehicle can be restarted and driven.
Can a bad ignition coil cause a no start condition?
Car is not starting A faulty ignition coil can also lead to a no-start condition. For vehicles that use a single ignition coil as the source of spark for all of the cylinders, a faulty coil will affect the operation of the entire engine.
What makes a GM ignition coil spark away?
This Triggering Signal is known as the IC (Ignition Control) Signal in the GM service literature. The ignition control module now starts to open and close the primary current circuit of the ignition coil and as you may already be aware, it’s this opening and closing action that makes the ignition coil spark away.
What makes a 1998 GMC C2500 no start?
1998 GMC C1500, C2500, C3500 Pick Up. 1998 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).
What causes a Chevy Astro van to not start?
In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when the engine is being cranked. If power is supplied, hitting the fuel tank with the flat side of a hammer while someone else is turning the ignition key to start will sometimes bump the fuel pump enough to allow it to start.
What to do if your ignition coil is not working?
Older ignition systems used breaker points to interrupt the circuit, while more modern systems “sense” the need for spark by means of a hall-effect switch or crankshaft position sensor. The ignition module uses the information to time spark generation. Test these components if the energized coil fails to function.
Where is the fuel pump fuse on a Astro van?
Check the fuel pump fuse located in the under-hood fuse block. If it is good, check for power at the fuel pump electrical connector located near the rear of the fuel tank on the driver’s side of the van. In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when…
The engine pistons and valves (and all the other related components like: timing chains, etc.) are the ones responsible for the induction of the fresh air the engine needs for the combustion process. Although rare, internal engine mechanical problems can and do cause no-start conditions. Blown head gasket. Blown engine. 4.)
Why does my GM 4.3L engine not start?
No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.
How to reset PassLock reset system on Chevy?
1. Turn the key to ON and attempt to start the engine and release the key to the ON position. 2. The SECURITY light will illuminate. Wait 10 minutes until it turns off. 3. Turn the key to OFF for 10 seconds. 4. Turn the key to ON and attempt to start the engine.
How to find a lost Chevy ignition key?
ALL KEYS LOST 1998-2001 CHEVY/GMC/CADILLAC IGNITION REMOVAL USING JIGGLER KEY & OBTAIN KEY CODE. – YouTube
1. Turn the key to ON and attempt to start the engine and release the key to the ON position. 2. The SECURITY light will illuminate. Wait 10 minutes until it turns off. 3. Turn the key to OFF for 10 seconds. 4. Turn the key to ON and attempt to start the engine.
Check the fuel pump fuse located in the under-hood fuse block. If it is good, check for power at the fuel pump electrical connector located near the rear of the fuel tank on the driver’s side of the van. In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when…
Is there a problem with the ignition switch?
The symptoms of the Chevrolet truck ignition switch problem on trucks from 2002 through 2008 are different than the ones associated with the older trucks. These drivers often complain about flickering warning lights on the dashboard. In addition, when the switch begins to fail they can cause an intermittent no start and even a stalling condition.
Is there a problem with the ignition switch on a Chevy Tahoe?
On GM vehicles this manufacturer specific trouble code represents a failure of the ignition switch. Chevrolet redesigned the ignition switch for the 2002 model year Chevy Silverado, Suburban and Tahoe sport-utility trucks. Unfortunately, this redesign did not improve the reliability of the switch itself.
Is there a problem with the ignition switch on a Chevy truck?
The Chevrolet truck ignition switch problem on the older vehicles carries a unique set of symptoms. Drivers of these trucks and sport utility vehicles sometimes complain about how the key operates. The spring-loaded return function of the ignition key is built into the switch itself.
What to do if you have ignition switch problem?
Another important point to make is that if you have a security problem replacing the ignition switch won’t fix it. This requires replacement of the lock cylinder or repairing the electrical connector that provides the security code or passkey information.
