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Why don't I have oil pressure after changing the oil pump on a Chevy Silverado HD 2001

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Did you prime the pump?

Posted on May 20, 2017

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I changed my oil pump on a Chevy Silverado HD and I don't have oil pressure Now


The relief valve in the pump is stuck open or missing the spring. Is the plastic coupling for the drive in place? Oil pressure should be 30 psi. or better. Also check the pick up tube for looseness in pump. Air leak will not prime the pump.

May 20, 2017 | Cars & Trucks

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I pulled my distributor out of my 2001 chevy Silverado with a 4.3 after putting it back in my oil pressure gauge not reading the oil pressure what could be my problem


Assuming everything is ok with the pressure sensor and wiring, its possible you dropped the connector rod between the distributor and the oil pump down into the oil pan.

Apr 27, 2015 | Cars & Trucks

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Chevy 2005 silverado low oil pressure replaced oil sending unit and the cluster no noise from engine


Put a gage in the sending unit hole and see if the oil pump is weak, that is the best way to tell if the engine pump is ok.

Jun 30, 2014 | 2005 Chevrolet Silverado 1500 2WD

1 Answer

2001 chevy silverado shuts down with no hisitation not like a fuel problem when it shuts down it will start back up in about 30seconds or so


GOT SAME PROBLEM CHEVY DAURMAX DEISEL HD 2500 CHANGE FUEL FILTER AND OIL &OIL FILTER . WHEN YOU COME TO A STOP SIGN OR RED LIGHT IT HAPPENS .I PUT IT IN NEUTRAL AND PUMP ON GAS SO RPM'S STAY AT 1800 RPM'S

Mar 02, 2013 | 2001 Chevrolet Silverado 2500

1 Answer

2001 chevy silverado /170000 plus mileson when i went to pull out briskly the motor started tapping and lost constant oil pressure when it is idling the oil pressure goes down to almost zero and the op...


Sounds like your oil pump is "getting tired". If you plan on keeping it for any length of time, you're probably going to have to replace oil pump. To replace you'll need to drain oil, drop oil pan and you'll find oil pump and pick up tube and strainer bolted to lower part of engine. Unbolt, slide out holding oil pump shaft in engine, slide new pump/strainer and pickup in place, bolt in place, reinstall pan and refill with oil.

Feb 23, 2011 | 2001 Chevrolet Silverado 1500

1 Answer

2001 chevy silverado hd. oil pressure dropped to 0 then rose to about half of what its supposed to be. Now rattling like crazy. Oil pump?


Oil pump is what it sounds like to me. I hope it hasn't ran much since all of it started as you can cause internal damage such as rod and main bearings which can grow to even worse problems. Wouldn't run it until I took a look at it if I were you. I hope this helped and good luck.

Jan 29, 2011 | 2001 Chevrolet Silverado 2500HD

3 Answers

I have a 2001 Chevy Silverado 2500HD 8.1L the truck loses power and will shut off for no reason, and does not matter what speed, i could be sitting at a light or doin 70 mph down the freeway and it still...


The O/2 senser will not make it qit but the fuel pump and the ingition module will. does it start right back up? Fuel pumps heat up and quit sometimes opened the relay and it cools and or is cycled as you try to restart and it reclosesand you drive on. an amp test on the pump draw or even a scope test of the pump may isolate it as the bad boy. Pumps build up pressure and heat if the fuel filter is partly clogged. Change the filter as preventale maintanance and try to blow though the old one if it blows though hard it may be too late for the pump and you may have to change it too as the stuff that went thohg the pump that stopped up the filter. You only can heat the pump so much before its bad if you find it is change the relay also and check the ground wire where it connectes to the frame. The hanger unit that the pump is in fails too and it has to be changed on most models as you can't buy the pump any other way because it fails as often as the pump or is damaged as the pump fails. The ingtion ciol can fail, but not likly to start right back up you gota wait. The ECM cando it too but is not a common problem. Their may be engine control codes in the computer to help you determine the problem

May 13, 2010 | 2001 Chevrolet Silverado 2500HD

2 Answers

I HAVE A 2001 CHEVY SILVERADO 4.3L. IN THE


I would your sending unit I dont really think you have a problem with your engine,I hope this helps you

Sep 22, 2009 | 2001 Chevrolet Silverado 1500

2 Answers

Changed oil pressure switch,still no oil pressure


The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
ChevRev

Mar 30, 2009 | 1999 Chevrolet Silverado 1500

2 Answers

2001 chevy silverado won't start when warm


Possible weak spark from ignition coil or low fuel pressure due to weak pump. Try spraying carb clean into intake throttle body when problem is present. If vehicle will start and run with a little spray then fuel pump is failing.

Mar 29, 2009 | 2001 Chevrolet Silverado 1500

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