Replace starter motor

[LETMGROW]

Another thing to check is the battery ground cable connections to the engine and chassis. Because the ground cable does not have to be insulated the cables often are open where the cable enters the terminal. You can get corrosion at the terminal which can increase resistance through the wire. The terminals are generally just crimped onto the cable wire and left open which can lead to problems.
On some applications ground cables may be attached to the frame from the battery and another cable runs from the frame to the engine block.
Electricity has to make a circle to work. meaning it flows through the positive, through the load and returns to the battery negative. ( In most modern applications ) Any added resistance in the travel path can cut the efficiency of the circuit down. Grounds are just as important as the hot wires for full battery power. Don't take them for granted.
You can do a simple test of the ground circuit by attaching a battery jumper cable to the negative battery post and attaching the other jumper cable end to a CLEAN spot on the starter. If the starter works as it should you certainly have a ground problem.
The starter must be grounded properly to the engine. The starter and engine block must be free of dirt and corrosion where the block and starter meet and the bolts and starter housing where the bolts tighten against the starter must be clean and corrosion free.
Lynn

[DriVer]

Originally Posted by darbyjudy

I am afraid I am going to be left stranded. Looked at replacing starter and switch but seen on Ultra price of 250.00 but stated I would have to tap holes for heat shield. What can you tell me about this.

Check with UltraRVProducts.com for a starter. They have a direct exchange units that required no new additional holes.

[darbyjudy]

I bought a new starter with the switch and yesterday I installed it. I also checked all the cables both pos and ground. The ground cable goes directly from the batter to the engine block. They all looked good. Only problem I ran into was installing the heat shield. Where the heat shield mounts on the starter two of the holes were not threaded, so I had to use a self tapping screw in them. All seems OK will no more after engine gets good and hot.

[wa8yxm]

Have had that happen on a couple of cars. One .... Well it was kind of a special case. I was saving buck big time at the barber shop before I accidently hooked up a meter in a manner that SHOULD have given a ZERO reading and found.. The answer. I seriously doubt that is your problem.

The rest were far more common, a gunked up starter due to a leaky oil seal.. Replacing the starter fixed it.