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Rainjet rj711 valve

Replace the diaphram

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2 Answers

My '94 Escort lx keeps burning up the ATF. What's the cause likely to be?


Your transmission is failing. Your clutches are burnt. Your check engine light should be on by now. By now you should be experiencing rough gear shifts amongst other things.

Sep 08, 2011 | 1994 Ford Escort

2 Answers

Choke seems to be on... runs very rough....


There are several ways to do it
a. Check carburetor if not clean pump it on the intake if that not solve try to clean it. with Lacquer thinner to dissolve the dirt.
b. Check spark plug if some are not working. In checking try to pull one by one the high tension wire and listen if the sound vary if the sound remain when pulling one wire mean you have problem with your spark plug. So replace all spark plug with the same spec.
c. or lost compression on cylinder.
d Check if you fuel filter if some dirt and replace it.
e. Clean your air filter with compressor or replace it
f. Check the clearance to the Contact Point it must have 1 mm or .8 mm spacing when not at firing mode ( just like the thin of the hacksaw blade the space of the gap of the contact point.)

Aug 12, 2011 | 1984 Jeep CJ7

1 Answer

Having trouble runing and cranking will crank sometimes when give it gas put in gear it dies new sparkpluggs fouled out smell oil when dies


PROBLEM COULD BE IGNITION MODULE OR BAD COILS.CHECK FUEL PRESSURE REGULATOR.MAKE SURE ITS GETTING VACUUM.AT THE VACUUM DIAPHRAM.IF NOT LOOK FOR BROKEN OR DISCONNECTED VACUUM LINES ON THE VALVE COVER INTAKE MANIFOLD. LOOK FOR SIGNS OF GASOLINE IN THE VACUUM LINE OR FUEL PRESSURE REGULATOR VACUUM DIAPHRAM.IF SO FUEL PRESSURE REGULATOR NEED REPLACING.

Jun 13, 2011 | 1999 Saturn SL

1 Answer

My 1995 suburu legacy wagon blows cold air through the vents. It won't get warm. I changed out the thermostat but did not help


there is a heater inlet valve that is controlled by either a cable or a vacuum diaphram. This heater inlet valve is usually on the engine side of the firewall. If the cable is broken or loose you will be unable to open the valve and port warm coolant to your heater core. If the vacuum line to the diaphram is cracked, broken, or loose then the same result. If everything looks correct, try moving your controls to full hot and checking the position of the valve. Go back and forth between full hot and full cold and check to see if the valve is changing position with your control input. If it doesn't change then either the cable is broken where you can't see the break (if cable equipped) or there is a vacuum leak upstream of the valve or the diaphram itself is leaking. In the latter case, time for a new valve.

Jan 12, 2011 | 1995 Subaru Legacy

5 Answers

ENGINE RUNS FINE. SERVICE LIGHT IS ON AND THE CODE NUMBER SHOWING IS PO401. WHAT IS THIS FOR SAYING?


  1. po401 refers to an insuffient flow of EGR gasses
  2. locate egr valve
  3. with engine running at idle
  4. on the underside of the valve you can access the diaphram.
  5. wearing glove if ness
  6. lift diaphram while idling
  7. does engine stall or run very rough?
  8. if not remove valve
  9. start engine
  10. you should hear a very large vaccum leak and exhaust noise
  11. if either are missing investigate cause
  12. if ok reassemble.
  13. locate DPFE sensor
  14. inspect sensor for damage
  15. inspect hose to sensor for damage
  16. replace sensor
  17. 9ecffd7.gif

Aug 10, 2010 | 1999 Ford Taurus

2 Answers

Wont fire sometimes


Replace the valve. the diaphram rubber has perished.Hope that was help full.

Jul 24, 2009 | 1990 Honda Civic

1 Answer

Oversize CAM on rebuilt 302 & reduced vacuum to breaks


Ran into this problem the same way you did, but back in '75 with a Ford 289.
First of all,and you've probably done it already, is to make CERTAIN all vacuum hoses and connections, tees etc. are leak free. Then move on to diaphram actuated valves (egr valve, heater core valve, vacuum modulator valve, distributor vacuum advance.... and then there's the diaphram actuated dampers for a/c and heat in the dash) ALSO, a good idea is to add a larger than stock vacuum canister, such as a large coffee can - metal of course!

Jan 16, 2009 | 1965 Ford Mustang

1 Answer

1988 Jeep Cherokee


Please check the EGR valve, located on driver's side of engine below intake manifold. Inside of the EGR valve is a diaphram pushed out by a spring. The spring rusts away, leaving the diaphram in the wrong position for idling. I have stretched out the spring, or just replaced the valve and had good luck thereafter. Valve is round about the size of a pop can (diameter) and shaped like a UFO.

Oct 23, 2008 | 1988 Jeep Cherokee

2 Answers

1987 toyota 22r engine truck won't idle or run well at lowere rpm. could it be the egr valve?


That is usaully the vacuum advance diaphram on the distributor. Its job to advance the distributor when at idle. The diaphrams inside rot and leak air, causing it not to advance. Take off the distributor cap and use a vacuum pump to individualy test each port (two of them) on the vacuum advance diaphram. You should see it pull back, if not replace it. They are sold at your local auto store, oddly its cheaper to get a whole distributor that has one for $100 that to get it alone for $150.

Jul 29, 2008 | 2003 Toyota Corolla

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