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Cat 426 backhoe swing very erratic when fist start and stop

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It sounds like there may be a bit of air in the hydraulic system. You probably have a seal leaking. Be sure the oil resivore is full.

Posted on Nov 28, 2014

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Posted on Jan 02, 2017

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Still looking for what case backhoe has for ohm range on fuel sending unit. case 580 sl series 2 empty to full


Click on the link, I can only talk to you in automotive terms. I know nothing about a backhoe. The sending unit has to have voltage, correct? Get a resistor for empty and one for full, If the gage acts proper to the resistors, the problem is the sending unit.
If that isn't the answer you wanted, sorry, that's all I got.
http://www.tanksinc.com/index.cfm/page/ptype=results/category_id=159/mode=cat/cat159.htm

May 01, 2017 | Cars & Trucks

1 Answer

Trailblazer slow excelleration from 1000 - 3000 rpm.


several things on a 4,2 can cause lazy acceleration,but the most common is a plugged catalytic converter,check up stream and down stream o2 sensor for activity,up stream should be swinging low and high and downstream should be fairly steady if cat is good,if down stream is erratic like up stream reading low to high 7 to 10 or more times a minute,suspect faulty cat. you can buy after market cats cut out the old one and weld in new one,much cheaper.

Nov 03, 2016 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

1990 Cat 426B turbo backhoe Turn key to start runs until I let go of key. And suck life out of battery after like 5 revolutions Replaced:starter,cables,battery,ignition key switch,& relays?


Hi Rick:
This should be a diesel engine so if it starts when the key is turned to the start but stops when the key is released, the fuel is being shut off since a diesel will continue to run as long as it is getting fuel.
Something is wrong with the fuel shutoff solenoid or the switch connection that is providing power to it.
I'd be trouble shooting the intended wiring function with a voltmeter or continuity meter.
Cheers

Apr 05, 2016 | Cars & Trucks

1 Answer

Why won't my cat backhoe 426 front wheels engage


is it electric switch or hand to turn the hubs, ther is also knobs which turn them off because of the hydrolics

Sep 21, 2014 | Cars & Trucks

1 Answer

I have an 03 pontiac gtp supercharged. I have replaced the mass air flow sensor twice but after a while again I get erratic idle problems usually at first start up. this is a pieced together engine. The...


(1) clean the throttle assembly. They are very sensitive to build up also and they are very cheap change out the throttle body sensor. The TBS allows are to by pass both of these will cause erratic ideal. The mass air flow will not cause erratic idle but your car will be very loud and run rough. Failing this (cheap fix) I would suggest to look at the ignition coils.

Dec 24, 2013 | 2003 Pontiac Grand Prix GT

2 Answers

2000 Toyota Camry When the engine is cold and the car is started, the car engine usually vibrates ans shakes. I changed the plug and the problem stopped, but after a few weeks the problem started again. ...


Hello and welcome to FixYa!

Looks like that you have a bad O2 sensor. If the O2 sensor is faulty the car may shake and there's noticeable bad emission odor. I strongly suggest that you have it replaced. You can find this sensor on the exhaust manifold.

Do you have an erratic idle? If you do then the MAF sensor must be replaced as well. A bad idle can cause the vehicle to shake. Keep me posted regarding the progress.

Hope this helps and thank you for using FixYa! Have a good one!

May 11, 2011 | 2000 Toyota Camry

1 Answer

Speedometer does not work 1998 Subaru forester


Sounds that the magnetic pickup on the vehicle speed sensor has stopped working. Dirt or grease usually. That will cause an erratic reading. Also check wiring to sensor. Poor connection is rare but possible. Good luck and have a good day.

Mar 08, 2009 | 1998 Subaru Forester

1 Answer

Speedometer does not work


Sounds that the magnetic pickup on the vehicle speed sensor has stopped working. Dirt or grease usually. That will cause an erratic reading. Also check wiring to sensor. Poor connection is rare but possible. Good luck and have a good day.

Mar 08, 2009 | 1998 Subaru Forester

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