Ever had to deal with a Chevy starter that takes too long to engage? Or perhaps, one that disengages immediately after releasing the ignition key? As a retired auto technician, I can attest that these Chevy starter grinding problems are common.
But with the different causes of Chevy starter grinding issues available, how do you fix the problems? I suggest you first determine where exactly the problem is. After all, it could be with your mounting bolts, starter gear, flywheel, or shims.
Below, you can find different fixing methods for the various Chevy gm starter grinding problems. I will also list the symptoms to help you tell whether or not your Chevy has starter engagement issues.
3 common Symptoms Of Chevy Starter Grinding Problems
Your chevy starter grinding noise problems are not something that will happen outright. There are some warning signs you will get, such as:
1. Clicking or grinding noise
You are likely to notice your Chevy starter grinding noise when starting your vehicle. This could be a result of worn-out starter components.
2. The starter engages, but the engine won’t start
In some cases, you might turn your Chevy’s ignition switch, and the starter activates immediately. However, the engine may end up not cranking over. In such a situation, it could be that the starter has mechanical issues.
3. The starter disengages after releasing the key
Sometimes, your starter may disengage after releasing the key. This may happen because of not using the correct bolts or poor ignition timing.
What Causes Chevy Starter Grinding Problems?
Without further ado, I will quickly go through some of the root causes of Chevy starter grinding noise issues. These include:
Damaged or worn-out flywheel
When the flywheel teeth of your Chevy truck are damaged, it may begin skipping notches in the connecting gears. Consequently, you might hear noises coming from your flywheels as they tap against the gears.
Bad starter solenoid or worn-out starter
A bad solenoid relay may either send partial current to your starter or nothing. If this happens, your vehicle may start fine sometimes but fail at other times. In some cases, worn-out starter gear or damaged teeth on the starter shaft may also be the cause.
Loose or incorrect mounting bolts
If your Chevy bolts are loose, the starter will not engage when you turn the key in the ignition. The correct starter mounting bolts should be knurled for a secure fit.
If the starter pinion gear is not correctly aligned with the ring gear, your Chevy may experience gm starter grinding problems. The misalignment could either be because of too much or not enough clearance between the pinion gear and the flywheel.
How To Fix Chevy Starter Grinding Problems? (with 3 methods)
Because of the various causes of grinding problems available, there are also different solutions. Below, you can find some of the most effective methods of fixing these problems.
Method 1: Replace Starter Motor and Solenoid
If your Chevy has a bad starter solenoid or worn starter gear, I suggest replacing the entire starter motor. Simply follow the steps below.
Step 1: Get your tools
Some of the tools and materials you will need include:
- New starter motor and solenoid
- 8mm to 14 mm sockets wrenches
- Jack and jack stands
Step 2: Disassemble the battery
I suggest you first jack up your Chevy. Next, disconnect your car’s battery by removing the negative terminal only.
Step 3: Time to remove your worn-out starter
Start by removing the bell housing that covers the starter. Then, pick your 13mm or 14mm size socket wrench and remove the bolts that secure the starter in place. The size of the socket wrench to use will depend on the size of your bolts.
Step 4: Remove all the wiring
Next up, remove the remaining starter wiring, including the solenoid wiring. Then, pull your starter motor out of the bell housing.
Step 5: Install a new starter motor and solenoid
Get your replacement starter with a new solenoid and slide it at the spot you removed the old starter. And using new starter mounting bolts, secure your starter in place.
Step 6: Connect the wiring and battery
Up next, reconnect the wiring to your new starter motor and your battery’s negative terminal.
Method 2: Replace the flywheel
If the problem is not with the starter motor, you should consider replacing the flywheel if it’s damaged. Here is how to go about it.
Step 1: Gather your tools and materials
Below is a list of some of the materials you will need:
- Floor and jack stands
- Set of 1/2-inch and 3/8-inch sockets
- 3/8-inch ratchet and extension
- Small 153-tooth or 168-large-tooth flywheel
Step 2: Disassemble the gear shift lever
First, unscrew the bolts securing the gear shift lever into the transmission using a 3/8-inch socket. Next, lift out both the lever and the cover from the transmission.
Step 3: Jack up your Chevy truck
Get your floor jack and jack stands to raise your vehicle. Next up, take your 3/8-inch socket and unscrew the transmission mounting bolts. From the side of the transmission, remove the slave cylinder, followed by the electrical connectors.
Step 4: Remove bell housing and transmission
Using your 3/8-inch socket with ratchet and extension, remove the bolts securing the bell housing. Then, pull the transmission back to get enough access to the flywheel. After that, get your 1/2-inch socket and unfasten the center bolts holding the flywheel in place. Next, pull out the flywheel.
Step 5: Mount a new flywheel
Slide your new flywheel to the exact spot where the old one was. You can either use a small 153-flywheel tooth or a larger 168-tooth flywheel. It depends on your Chevy model. Then, fasten the flywheel in place using new bolts. Lastly, put everything you had removed back in its rightful place.
Method 3: Shimming the starter
Sometimes, the gap between the pinion gear and the flywheel of your Chevy can be too small or too big. Here is how to fix the problem.
Step 1: Get your tools and materials
Some of the things you will need to get the job done include:
- 3/8-inch ratchet and socket
- Jack and jack stand
- Starter shims
- Paper clip
Step 2: Disconnect the battery
Using your jack and jack stands, raise the front of your Chevy. Then, disconnect the positive battery cable using an open-end wrench of any size.
Step 3: Remove the starter
Take your 3/8-inch ratchet and socket and unbolt your starter from the engine. If the gear clearance is not enough, I recommend you remove the shim. You need about 1/8-inch clearance when the gear is in a relaxed position.
Step 4: Add a shim
Starter too far away from the flywheel? I suggest you place a shim onto each of your starter’s bolts. Then, secure your starter onto the engine and fit a paper clip between the flywheel and the pinion gear. The clip should fit in.
people also ask (FAQs)
In this section, I will be responding to some of the commonly asked questions about Chevy starter engagement problems.
Is it worth fixing starter grinding problems on chevy?
Yes. If you don’t, your Chevy’s flywheel teeth and even the engine can get completely damaged over time. As a result, it can be expensive to fix everything.
Is it safe to drive a chevy with starter grinding problems?
You can. After all, your Chevy’s engine is unlikely to stall or shut down while driving.
How much does it cost to fix chevy starter grinding problems?
A good quality starter will cost you around $50 -$400. If you add the labor costs, the figure can go up to $1,450.
Does your starter make a grinding noise >> Check out the video below:
Chevy starter grinding problems are pretty common just like with other vehicle brands. Usually, the most common causes of these problems are worn starter gear, a faulty solenoid, and a damaged flywheel. The good news is that all of these problems can be fixed.
For instance, if it’s a worn-out starter, incorrect mounting bolts, bad solenoid, or damaged flywheel, you simply install new ones. Even so, I suggest you always pay attention to the symptoms of this starter grinding problem. This way, you can fix the cause of the grinding problem early enough before it escalates.