Question about 1995-1997 Chevy 3500 Truck Ignition Starter Alarm Switch

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My 350 cid when cold starts as should, but once hot the starter drags like battery is dead, could this be starter, heat related, battery or connections, James

Engine has headers that are close to starter position

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If these episodes run the battery down enough that a jump is required after cool down. I would say you have a bad cell in the battery. Providing that your charging the battery properly.
You can place a volt meter on the battery with the engine running to see if your charging system is working. You should get around 14 VDC and it should stay above 13 VDC when you turn things on (heater blower, headlights etc) If it's low or dropping below 13VDC you may have dirty battery connections or a bad alternator.

If your battery is holding good and you do NOT require a jump after cool down, I would say that the starter is failing, this is more common. The heat from the engine makes the starters bearings (bushings) tighter and it looses a lot of pep. But a good battery will recover from the starting attempts and function normally when the starter cools off.

It is also possible that you have BOTH problems. Where as one problems has caused the other for example,

A weak battery can cause the starter motor to pull more current causing damage to the starters armature windings over time.
OR the starter got tight and finished off an already old / borderline battery.

A good rule of thumb.....
IF your battery is 4 or more years old, you may want to start there, because the battery is near the end of its intended live anyhow. installing a new one will do one or more of the following.....
A) solve the problem
B) was preventative maintenance to keep you from being stranded in the next year or so. (that IS what old batteries do)
C) it was the least expensive and the most likely of the 2 solutions

If you decide to have the battery checked or load tested, keep in mind that they sell batteries for a living.
My story....
I had a Buick that did that with a new battery. The battery chain that sold me that battery, load tested it and said that the battery was OK.and that it MUST be the car. They didn't want to admit it was defective and give me a new one. After awhile, I got sick of having to jump it from time to time and just got a new battery at Pepboys and changed it. LIKE NIGHT AND DAY!!

Posted on Dec 01, 2014

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That is a common problem with many cars, Yes the dielectric coating one the stater or armature coils has broken down and shorts out during expansion, cool the starter and it works, Yes it needs to be replaced
Note: most manufactured engine with the starter very near the exhaust have incorporated heat shields to help stop heat from being a problem, if your have been removed, remedy that with a new shield or tin foil for temporary measures to extend the life of your starter

Posted on Mar 26, 2015

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