Idling Problem

Robster · Post by **Robster** » Wed Jan 28, 2015 12:25 pm

Hi guys, I have a drive by wire 1999 2.5 diesel which has developed an idling problem when warm.
The engine runs as if it wants to stall, not all the time and only when on tick over at lights/junctions.
You can rev it out and all is fine until the next set/juction.

Are we thinking a sensor may be on it's way or EGR sticking maybe.

Cheers

Northern Bongolow · Post by **Northern Bongolow** » Wed Jan 28, 2015 10:03 pm

does it help if you knock it in to neutral or park when its trying to stall.

Post by **Bob** » Wed Jan 28, 2015 11:55 pm

Not normally a problem finding idle rascals on here.

wonkanoby · Post by **wonkanoby** » Thu Jan 29, 2015 9:17 am

try removing fuel cap

Robster · Post by **Robster** » Thu Jan 29, 2015 12:25 pm

Thanks for the replies

Have changed all filters with no difference.
Have tried with fuel cap loose/Off with no difference.
Putting into N or Park with no difference. only in N/Park can you rev it out and all is ok until next stop.

Cheers

Gasy · Post by **Gasy** » Thu Jan 29, 2015 7:39 pm

Did you clean / replace the banjo filter ( little gauze just before fuel pump)
Might not be problem but worth doing

Northern Bongolow · Post by **Northern Bongolow** » Thu Jan 29, 2015 8:19 pm

Robster wrote: Putting into N or Park with no difference. only in N/Park can you rev it out and all is ok until next stop.

Cheers

im sorry i dont understand the reply, you say it makes difference, then you say it does and you can rev it out. can you spell it out little better for the hard of thinking ----me.!!!!!

Robster · Post by **Robster** » Thu Jan 29, 2015 9:47 pm

Hi NB, putting it to N or Park makes no difference. I loose a few revs but thats all.

If I rev the engine at 2000revs for 3/4 seconds then release the accelarator all is well until the next stop and its tries to stall again.

Robster · Post by **Robster** » Fri Jan 30, 2015 8:51 am

Correction,,, I Gain a few revs putting it into N/Park

wonkanoby · Post by **wonkanoby** » Fri Jan 30, 2015 9:22 am

sonds like air getting in fuel lines

rita · Post by **rita** » Fri Jan 30, 2015 11:48 am

If the engine gains a few revs when you put it out of gear that is quite normal as you are removing any drag. What is RPM when out of gear?

This system uses a sensor and a switch on the accelerator pedal, as has been said (Bongo Forum) worthwhile checking the rubber stops and the connectors on both, and the bit about the regulating valve.

It might also be worthwhile resetting the ECU , I have seen this fault when the ECU defaults to (depending on vehicle) as low as 400RPM.

Good Luck.

Robster · Post by **Robster** » Thu Feb 19, 2015 8:38 pm

Hi All,

Just to update. The fault was the EGR VALVE stuck open.

Bought two blanking plates online for £6 from Allan's Garage Plymouth. Even shows how to do it. Easy DIY

All running sweet

Northern Bongolow · Post by **Northern Bongolow** » Thu Feb 19, 2015 9:08 pm

was it stuck open or stuck closed, as it should be open when warmed up, when the fault was showing itself.

its good to get feedback like this as it helps the next chap.

mikeonb4c · Post by **mikeonb4c** » Thu Feb 19, 2015 11:25 pm

Robster wrote:Hi All,

Just to update. The fault was the EGR VALVE stuck open.

Bought two blanking plates online for £6 from Allan's Garage Plymouth. Even shows how to do it. Easy DIY

All running sweet

Excellent result and thanks for sharing the news.

rita · Post by **rita** » Sat Feb 21, 2015 12:14 pm

Northern Bongolow wrote:was it stuck open or stuck closed, as it should be open when warmed up, when the fault was showing itself.

its good to get feedback like this as it helps the next chap.

Just to update. The fault was the EGR VALVE stuck open.

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