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Questions for bubba the bus tech KEISHA 10-17-12  
I need help my motorhome will not start all it will do is click
Re: questions for bubba the bus tech BUBBA THE BUS TECH 10-18-12  
Without year make model engine type and size I can only guess.

in order:
Check: Battery Voltage no less than 12.5, CHeck battery voltage when cranking no less than 11.0 for gas pots. (24 volt bus systems double voltage)Check from both cable ends to terminal posts when cranking no more than.1 volt when cranking, check crank voltage at starter main power terminal and solinoid terminal no more than.4 volts less than battery voltage when cranking. Check voltage from starter voltage to battery post when cranking, no more than.4 volts.
If more than 1 reading is more than.1 volts clean and remake all conections.

Next:
Have the battery load tested. Have the starter checked for amp draw and operation.

Good Luck
Re: questions for bubba the bus tech KEISHA 10-18-12  
I'm sorry it's a 1987 chevrolet pace arrow with a 454 i have replaced all batteries, starter, battery cable going to starter and selonoid... all batteries have 12.5 volts it clicks really hard like the starter is engaging but not turning the motor but is it possible the motor could have locked up??? but it was running great no taps, knocks, or anything
Re: questions for bubba the bus tech BUBBA THE BUS TECH 10-19-12  
Great.

Your engine could be locked up, BUT it is unlikely.

Try releasing your alternator, powersterring and other belts. Have seen many locked up alternators on GM product cause this.

If that isn't it try turning the engine with a socket at the harmonic balancer.

And finally if it does turn try the starter, I hyave seen starters decide to hit on a tooth on the ring gear and this will happen.

But it still could be a bad power conection and grounds, the solinoid is supplied by a difrent supply route.
Re: questions for bubba the bus tech keisha 10-19-12  
Ok i looked in the spark plug hole with a camera and the piston and valve are scared like something has just really beat them up but i will try all of that stuff and see before i tear it down and i have also tried to turn it with a socket on the harmonic balancer and i can't get it to budge either direction
Re: questions for bubba the bus tech Larry L 10-10-16  
1993 Sunrise motorhome,454 TBI. Good fuel pressure, changed filter two new injectors, checked all fuses ex..Batteries fully charged.Gas is at the injectors but wont open.Starts and runs when gas is poured in TBI. No scan tool, is there something else I can do before I need to find one? ????. Need Info Desperately!! ( PLEASE ). Anyway ideas Thank You. Ph#: (406-438-6294 ) or use text, or email add, at the top
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