Cranking issues

[pharmstudent]

Hey all,

I recently purchased a typhoon that runs great, however the battery has been relocated to the rear and a ford starter solenoid has been utilized.

The weird thing is when you go to start the truck it starts to crank, then has a pause, then cranks fast and fires no problem.

What would be causing the pause? I have searched all the past threads and haven't seen this exact issue. It has an optima red battery and I have checked all the connections and the ground seems good as the truck runs good and charges nice also.

Thanks
-Mike

 

[sly dvl]

Re: Cranking issues

Solenoid dropping out momentarily? Check the output term of the Ford solenoid for a constant 12v while cranking.

 

[Don W.]

Re: Cranking issues

Based on numerous posts I've seen here, IMHO it could very well be a wiring issue. Depending on exactly how the Ford solenoid is wired into the circuit it may be causing the delay. Like Sly said a through check of connections and voltages is a good first start.

And don't forget that the battery has to be grounded correctly and, in turn, the motor the the same ground. The frame for example. Lots of times bat connections are made with cheap terms that just smash the cable. These are very prone to corrosion.

 

[sly dvl]

Re: Cranking issues

Usually the shifter cable provides this ground until it fries.

The 70's Camaro's used to suffer from this. The engine to chassis ground strap would fail, and the shifter cable would become the new ground path. It would get harder and harder to shift from park until it finally had to be towed in.

 

[Syclone Rob]

Re: Cranking issues

Double check that the frame has been grounded to the engine. Don't laugh, or assume this is OK. Seems some peeps have trouble figuring out that the frame is not grounded to the engine when they do a battery relocate. They ground the battery to the frame, but there is not an adequate connection between the frame and block.

Usually the shifter cable provides this ground until it fries.

So where is a good place on engine to frame to ground?

 

[sly dvl]

Re: Cranking issues

A cable running from the starter housing to the frame would be ideal. But, any large bolt (Trans., Alt bracket, A/C bracket) would be adequate.

 

[sly dvl]

Re: Cranking issues

But I wouldn't put anything under a starter bolt. Too great a possibility of the bolt loosening.

Hmmmm, good point Dave. I was thinking from an electrical P.O.V., not a mechanical. :tup:

 

[Don W.]

Re: Cranking issues

Well at least we all agree on the ground. :lol: I would only add that all connections be clean of paint, dirt, whatever. It can be a real eye opener on how much difference good solid clean connections can make.

I have solid mounts which provide a ground path and still use a cable from the engine to the frame. With good connections and heavy cable throughout, bat in the rear of the bed, my truck cranks just fine. Without the purple wire mod BTW.