I made sure wireing and vacum diagram is rite even used a vacum gauge on egr to see if it worked properly also tested for vacum when held at 2000 rpm and that was good what mite cause the light to come on
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Re: egr trouble code 35 keeps turning light on
It could simply be that the EGR valve is clogged. You could try doing a Seafoam treatment on the vacuum system to see if that can free up the EGR (you can get the Seafoam at AutoZone or any other parts store, and it's cheap). You'd need to find a vacuum line you can easily remove, and feel suction into the engine from. Pour some Seafoam into a bowl (maybe 1/3 of the bottle), and use a small piece of vinyl hose to get it into the engine. Put the hose into the vacuum nipple, seal around it with tape, and dip the other end into the bowl. Rev the engine as needed to allow the engine to **** up the fluid. You may need to rev it up during the first couple minutes following the ingestion of the Seafoam - the car will blow black smoke out of the tailpipes and may stumble and run rough. This will let up as the engine burns off the excess carbon inside, and afterward your car should run quite a bit better. Put the vacuum line back on and you're good to go.
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code p 0401 refers to exhaust gas recirculation (EGR) system---insufficient flow detected==== causes ---hose leak/blockage, basic setting not carried our (if applicable)---wiring---EGR valve ---EGR solenoid ---ECM
when you have done everything make sure that you use a scan tool to reset the ECM
Items that you haven't mentioned are wiring and substituting the ecm with a known operational one
bad wiring and connections / ground , broken in side the insulation may cause the problem as well
Fast blink usually indicates a burned out bulb. Need to check for fuel pressure . If there is no fuel pressure could be pump., relay , fuse , wiring . Check to see if you have spark. You can use a spark plug as a tester . Pull the coil wire from the distributer insert the plug in the wire ang ground the side of the plug to the engine . Get someone to turn over the engine . You should see a bluish white spark . If not there is a problem with the ignition system .It might be easier to use one of the spark plug wires rather than the coil wire for this.
Do a vacume test . Need a vacume gauge for this. Conect it to a major vacume source on the engine and read the scale. EGR valves are a a major problem for no vacume if they stick open. If all those things are ok check compression be taking all plugs out and screwing a compression gauge into each plug hole , turn engine over and record the pressure. All cylds should be close to the same . Most gauges have indicaters as to what is to low or fair etc. If the engine light was on check for codes because some sensors can cause a no start .
P1400 Exhaust Gas Recirculation valve position sensor P1401 Exhaust Gas Recirculation valve position sensor P1402 Exhaust Gas Recirculation metering orifice restricted P1403 Exhaust Gas Recirculation differential pressure sensor P1404 EGR Temperature Sensor circuit P1405 Exhaust Gas Recirculation Differential Pressure Feedback Sensor upstream hose off or plugged P1406 Exhaust Gas Recirculation Differential Pressure Feedback Sensor downstream hose off or plugged P1407 EGR solenoid -No Flow Detected P1408 EGR solenoid -Flow out of Self- Test Range P1409 EGR Vacuum Regulator solenoid circuit malfunction ---
The sensor for the EGR Valve position is not functioning correctly.
you might have to put a different egr valve because sometimes the auto parts store will give you a different one same thing happen to me when i replaced mine and it didn't work I end up buying another one and it worked after I replace it make sure that when you take it out you spray carbutetor cleaner thru the coumbustion holes some times there is carbon build up in there and will make your egr valve malfuntion . good luck.
Trouble code P1698 means: No CCD Messages Received From The TCM
code P0403 means-EGR solenoid circuit short or open
On the intake close to the EGR there is a solonoid that has wires and vac lines going to it. Make sure the wires are connected and not shorted.
do you see if the manifold was cracked? usually the problem is not just the egr valve it has a modulator it is either electronic or vacum controlled, now the right way to check or the first thing to do is if there is vacum at the valve and from there check to see if there is vacum at the egr valve only wheren you rev the engine aroun 2000 to 2500 rpm , but i suggest you not to rev the engine at this rate too long if the valve opens thne the next thing to do is remove the valve and makd sure that the egr port is not clogged up with carbon if it is plugged up you can just knock them off using a small screw driver or such and clean the passage with a wire brush and put the valve back always make sure that you put it back using a new egr valve gasket.
regarding the noise make sure that all other tubing that go from the exhaust manifold is not broken it is not just the muffler that is involved in the exhaust sys that keeps the noise down!!!
Common problem with Dodge Rams. Nobody has the right parts (dealer only) the right part numbers, or the right diagrams or component lists or locations.
The 5.9 L most likely has no EGR valve, as mine does not. It does however have an Idle Air Control Valve located at the back bottom of the throttle body, which if removed, will show carbon buildup, preventing proper fuel/air mix.
You also may have a vacum leak at one or more vacum hoses on the intake manifold, a leak at the vacum ball that stores vacum for working the vent controls when the engine is off. It looks like a big black ball, and has a vacum line going from the top of the intake to the ball, maybe located behind the RH pass headlight. The rubber hoses dry oput, crack, and rot after a few years due to OZONE exposure from the air. Go ot and buy 6 or 8 feet od 3/32 rubber vacum hose, and replace everything that is suspect. Look for cracked Ts. Dont forget to check the larger vacum hoses that go to the charcoal canister and fuel tank vent valves. The rubber elbows have a tendency to pop off the charcoal canister connectors on a hot day if you overfill the gas tank, and the rubber elbows are old and stretched out.