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My kohler diesel genset starts but won't keep running. Good fuel flow to injector pump. Any idea what's wrong? It's a Model 32-5ROZ81 Spec # 17201A5-28-55-58. It seems as if it's being shut down electrically.

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Crank sensor!

Posted on Sep 20, 2012

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Check the ground block for any loose wires.
check the rpm sensor for dirt(clean rpm sensor).

Posted on Oct 04, 2009

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1989 K1500 was running fine and just quit. Not getting gas but I can hear the fuel pump start when I turn the key on. took fuel line off of TBI and seem to have plenty of gas flow but nothing comes out of...


you need to have the fuel pressure checked with a gage and volume as if its not at the spec the injectors won`t open to spray enough fuel.also you should check the injectors for proper voltages and ground as if these are not within specs then the injectors won`t work either

Oct 17, 2011 | 1989 Chevrolet K1500

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I have a Kohler generator set model KT17 that was not run for several years and was full of old gasoline. It would not start at all so I replaced plugs, cleaned fuel pump & filter, then cleaned carb...


Check the genset controller for a fault, low oil psi, no output voltage, overspeed, overcrank / no crank disconnect signal / starter staying engaged, high engine temp.

Jun 26, 2011 | Kohler Electrical Supplies

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1975, 7.5 Kohler marine genset, runs only with the reset depresed


Can't search for a manual without model, type, serial, etc numbers...

A few things to take a look at:

1) Oil level / pressure sending unit. This is normally bypassed as long as the start switch is pressed. When engine starts, and switch is released, engine will die if sending unit is defective, or you are low on oil.

2) Exhaust temperature sensors. Older units were notorious for burning these up.

3) Cooling Water Temperature sensor. These cause trouble often, but mostly due to water pump impeller being eaten away by galvanic action and not able to pump water as effecively. End result is water temp higher than normal, which trips the switch, which kills the engine.

4) Alternator (generator) output not as it should. If output doesn't rise to proper level within a few seconds of engine start, the engine will be shut down.

5) Choke not working as it should

6) Bad fuel, bad fuel pump, clogged fuel filter.

May 26, 2010 | Kohler Electrical Supplies

1 Answer

How to reduce the noise from the diesel genset


Turn it off?

Seriously, you can try upgrading the exhaust (search for super trapp), or build a small enclosure to go around it (but still provide plenty of air flow).

BioDiesel has been known to quiet injector noise, but double check with manufacturer first. Howell's Diesel supplement can also help with injector noise, and keeps fuel from gelling in winter, has an algaecide in it, and is decent for fuel storage.

May 06, 2010 | Electrical Supplies

3 Answers

The gent set is Perkins 135 KVA after overhauled it refuses to start please the injector refuses to supply fuel to the nozzle


Check the fuel solenoid is getting power. It may be locked out by loow lube oil pressure and other things.

ALSO when restarting a diesel one OFTEN must "bleed" the fuel lines at each injector... same as when one inadvertently runs a diesel out of fuel. Crack the connectors at the injectors and crank till fuel comes out and tighten each one. Yes, it is a pain...

Apr 21, 2010 | Pramac GBW30P Encl Diesel Genset w/Perkins...

1 Answer

Low power


Hi ,
firstly i would do a full service on it , all filter and fluids , oil/coolant water,fuel filter(s) and air filters
pay attention to any water seperators , check all fuel line connectors and unions are tight and in good order ( drawing a small amount of air into the fuel system if often the cause of ''a lack of power '')
check your diesel as it absorbs moisture and can severley effect the running of an engine .
if this has no effect
get a rag /goggles and the right size open ended spanner and slacken each fuel injector nut whilst the engine is running , listen for the engine noise going down , if it dosent this means the injector is deffective ( might need replacing or cleaning ) do this to each injector in turn , be very careful as you do this , the diesel is at 200bar pressure and can injected you ( hence the rag )
a final one is the fuel lift pump may be deffective , they often partially work and starve the engine at maximum revs , depending on your engine this will be an electric one or driven directly from the engine block , just follow the fuel lines from your diesel tank ,.
hope this helps


Jan 17, 2010 | Pramac GBW30P Encl Diesel Genset w/Perkins...

5 Answers

Dodge cummins won't start, fuel reaching injector pump but no fuel coming out of injector pump.


You said you have fuel flowing from the inlet line of the injection pump? But not at the injector lines?

May 05, 2009 | 1999 Dodge Ram

3 Answers

Wrong fuel


Did you purge the fuel lines, filter and fuel pump? if not do so, it will start then I am sure

Nov 10, 2008 | 1996 Volkswagen Golf

2 Answers

Help w 1994 chevrolet truck


This injector set-up needs a specific fuel pressure supplied to the fuel rail to even start, much less run properly. The fuel pump is immersed in fuel inside the gas tank to keep it cool and not burn up. Running the fuel level low causes more heat in the pump and interuptions in proper fuel pressure. AC/Delco pumps have proven to be a reliable fix, the aftermarket pumps only last for a month or two sometimes. Check fuel pressure under the hood and power and ground to fuel pump at electrical harness at top of gas tank. This truck needs a fuel pump.

Aug 18, 2008 | 1994 Chevrolet C1500

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