How long does a factory alternator last?
In general, you can expect alternators to last about 6-10 years, or about 80,000-150,000 miles.
What’s the best way to replace an alternator?
There’s a 90-degree twist in the middle of the Cross Force wrenches, so you end up pushing on a flat surface. The result: we could push harder without discomfort. So we just laid into it and the belt came free. Once the belt is off just remove whatever bolts connect the alternator to the bracket and you’re good to go.
How much does it cost to repair a pre 71 alternator?
Pre-’71 alternators are also similar, but do not have an internal voltage regulator, and use individual diodes in place of a diode trio and bridge rectifier. Alternators fail frequently, and good rebuilt units are pricey (typically in the $150+ range). But virtually any alternator can be easily repaired for less than $50.
How to replace an alternator on a 1995 GMC?
Somewhere on your vehicle there is a tensioner pulley. You’ll need to move it enough to slip the belt off the pulley. Our ’95 GMC has a standard spring-loaded GM tensioner that required us to pull it back with a wrench.
What happens if you Don’t Disconnect the battery from an alternator?
If you don’t disconnect the battery, you’re very likely to end up grounding a live wire during the process. This causes cause all manner of bad things to occur — not the least of which is giving you quite a shock. Now that the battery is out of the way disconnect the wire or wires from the back of the alternator.
What’s the best way to remove and replace an alternator?
Follow these simple, step-by-step instructions for removing and installing an automobile alternator with common tools. Includes advice on the correct wiring as well as testing and troubleshooting tips. Sponsored by BBB Industries – makers of premium alternators and starters that meet or exceed OE form, fit and function. http://www.BBBind.com
How many bolts do you need to replace an alternator?
Our model required the removal of three bolts: one at the front and two at the rear. With the old alternator in your hand you’re half way home. You’ll likely find getting the new one back in goes much faster since you already know what size the bolt heads are and where everything is.
Somewhere on your vehicle there is a tensioner pulley. You’ll need to move it enough to slip the belt off the pulley. Our ’95 GMC has a standard spring-loaded GM tensioner that required us to pull it back with a wrench.
Pre-’71 alternators are also similar, but do not have an internal voltage regulator, and use individual diodes in place of a diode trio and bridge rectifier. Alternators fail frequently, and good rebuilt units are pricey (typically in the $150+ range). But virtually any alternator can be easily repaired for less than $50.