Question about 1991 Chevrolet K1500

2 Answers

Egr valve what is the orifice washer size?

Posted by on

  • hpancoast Sep 28, 2008

    what is the washer size for the oriface on the EGR valve?



2 Answers

  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 1 Answer

I am changing mine, and the original doesnt have washers

Posted on Nov 14, 2014

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 350 Answers

A matter of interest why do you want to know what size the orifice is as if you take the egr valve off some don,t have a gasket some do but they cannot be altered the are standard fittings if i know why i may be able to help you with what it is you are after yates210456

Posted on Sep 28, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What sized orifice washer goes in a 87 Dodge Aries 2.5 liter ERG Valve?

I suspect you mean EGR valve. Not sure what you're asking, but RockAuto carries parts for the EGR system on your car. See the link.
1987 DODGE ARIES 2 5L 153cid L4 EGR Gasket RockAuto

Feb 23, 2017 | Dodge Cars & Trucks

1 Answer

Where is the orifice tube located on a 2001 Chevy Tahoe?

Can't remember exact locations. But here is how to find it. From the compressor, follow the hose/tubing to the dryer(Big aluminium container). In the tubing you see it go from one size to a smaller size. This is where the orifice/expansion valve is. There will be a coupling to take apart. It can be two nuts to unscrew or a quick disconnect coupling. There are tools to pull it out. I just ground down a pair of needle nose pliers to pull them out. Twist it as you pull it out.

May 01, 2016 | Cars & Trucks

1 Answer

Where is the orifice tube on a 1990 geo tracker 1.6

an orifice tube in what? (yes, yes, and yes)
1: one in the head for the oil gallery, 0.050" diameter
2: a set in the a/c expansion valve.
3: many in the automatic transmission if not stick trans.
4: Im sure, more, but need to know what system i car is failing
and symptoms. would make this 10x more easy

5: the windshield washers have orfices.

Aug 20, 2015 | Geo Cars & Trucks

1 Answer

1981 F-100. Where is the orifice tube located?

In the tubing in the engine compartment right before it goes into the cab. You will see the tubing reduce in size that is where your orifice tube should go.

Jun 23, 2015 | Ford Cars & Trucks

1 Answer

How to troubleshoot and repair 1998 grand am with p0401 code .Its supposed to be egr problem.

Trouble Code P0401 is EGR insufficient flow detected. Modern EGR valve are controlled by the PCM. (Powertrain control module) They consist of multiple port orifices that are all different sizes and the computer combines the ports by opening the ones it needs for the desired flow. One clue with this one is a rough idle. If there are no other codes at all then I would say that the EGR valve is not properly sealed or is itself at fault. Carbon builds up on the plenum of the intake and valve. Pieces can break off causing orifice failure. EGR valve needs to be removed and inspected. Gaskets must seal on both sides of valve. May be able to clean valve and ports if dirty but may need to just replace valve...

Jun 16, 2014 | 1998 Pontiac Grand Am

1 Answer

Egr valve orifice washer

Contact dodge parts with the VIN NUMBER

Mar 02, 2014 | 1988 Dodge Dakota

1 Answer

What is the orifice size for the egr valve on a 1988 gmc 3500 454 tbi

You need to cross reference with your VIN and chevy parts dept

Mar 02, 2014 | 1988 Dodge Dakota

1 Answer

Code P1405

I have copied the entire description for the code.
Let me know if you need more info. You may need a shop to take a look at the system.

P1405 Ford Description
The purpose of the Exhaust Gas Recirculation (EGR) system on your engine is to limit oxides of nitrogen (NOx) emissions. This is done by redirecting small amounts of exhaust gas back through the upper intake to get mixed in with the air/fuel charge. The resultant diluted air/fuel mixture (i.e., less oxygen per cubic foot) burns cooler and combustion chamber temperatures are reduced accordingly, thereby lowering NOx emissions.
The Ford DPFE/EGR system is controlled by the Powertrain Control Module (PCM). The system employs an EGR Valve, an Electronic Vacuum Regulator (EVR), and a Delta Pressure Feedback EGR sensor (DPFE).
The DPFE Sensor measures EGR flow across an orifice located inside the special EGR Tube. The orifice is positioned between two hose ports coming off the tube which are connected to the DPFE sensor with special heat-resistant hoses. When the EGR Valve is open, a pressure differential is created across the orifice (intake manifold pressure vs. exhaust pressure). By design, this difference in pressure is measured by the DPFE sensor in terms of voltage. The DPFE voltage signal output to the PCM is directly proportional to the flow of exhaust gas entering the intake manifold.

Read more:

Aug 30, 2013 | 2004 Ford Taurus

1 Answer

2003 Jetta Stalls while driving when the tank gets below 1/4 tank. Once stopped the car starts right back up. Have had in the shop numerous times with no results. I want to sell this car but don't want to...

Some of the early, in-tank fuel sending units had a restrictive orifice that caused problems, mostly in cold weather. forums discuss the problem as well as a DIY fix which involves pulling the sender and carefully drilling the orifice over-size. Good luck!

Aug 11, 2013 | 2003 Volkswagen Jetta TDI

Not finding what you are looking for?
1991 Chevrolet K1500 Logo

Related Topics:

162 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides