Weak starter causing hard hot starting? (1 Viewer)

[4Ruster]

Hey I have a 2L with what I think is a faulty starter. I can hold the glow plugs cold for 6-8 seconds and it'll fire up immediatly. However when warm, I still need a few seconds of glow or it won't fire, it'll crank and almost go then not go, I give it some glow and it fires right up. I personally think the starter cranks too slowly to generate enough heat.

I draw tested the starter and it pulled 550 Amps when cranking, seems waaaaay too high for a 2.4L engine. I've also noticed (when bleeding the system when I'm in there) that after about 7 seconds of cranking, the starter all of a sudden goes faster and stronger.

Here's a few videos, how does my starter sound? I'm running dual 650CCA batteries that tested great in april.


fires right up but the starter does sound laboured


Here's a better video, ignore the racket the engine makes, this was before I got the injection pump timed and adjusted properly.

 

[veiloctane]

your grounds good?
glow plugs working?

your first crank sounded like its not getting fuel and after a few cranks it fires right up whats the condition of your injection pump?

 

[4Ruster]

your grounds good?
glow plugs working?

your first crank sounded like its not getting fuel and after a few cranks it fires right up whats the condition of your injection pump?

Yes and yes. The pump is a new reman unit. I’ve adjusted it to the best of my ability.

 

[veiloctane]

I recall the FSM has a troubleshooting guide to follow have you already gone thru all the steps?

 

[ATL Cruiser]

It could also be weak batteries. Your starter needs every bit of juice those batteries can give.

550A is insanely high. That would be the starter failing and/or corrosion on the starter wires/ground.

I'm a bit confused on your two videos. One fired right up immediately no issues. The other had a long, extended crank. likely due to air in the fuel lines.

 

[4Ruster]

It could also be weak batteries. Your starter needs every bit of juice those batteries can give.

550A is insanely high. That would be the starter failing and/or corrosion on the starter wires/ground.

I'm a bit confused on your two videos. One fired right up immediately no issues. The other had a long, extended crank. likely due to air in the fuel lines.

The first video was an example of it starting with glow plugs, the second video was with no glow plugs. I will get a better video today. The batteries put out a combined 1100CCA and are relatively new.

 

[4Ruster]

Alright here’s a warm start no glow

 

[veiloctane]

inside the starter could just be dirty or have worn contacts