Citroen saxo 1998 1.5D wont start ? pls advise

alykhalil

Dave_G wrote:

If you can get inside the relay (it sounds like you can) then I would just check that all joints are ok. A quick bit of heat on each joint should do it. If that doesn't work then I'd be getting a new one from somewhere

right..but the thing is i dont even know what the inside actually SHOULD look like..so if something is broken, or solder come off i wudnt know...i will try it though...wish me luck...

cheers...

alykhalil

Dave_G wrote:

If you can get inside the relay (it sounds like you can) then I would just check that all joints are ok. A quick bit of heat on each joint should do it. If that doesn't work then I'd be getting a new one from somewhere

can you please also tell me what relay is it called ? i eman when i called eurocar parts they asked me what realy as they had many types of relays with diff prices ? do all relays are called differently ? or is it called starter relay or glow plug relay ? ..LOL..?

thks

Dave_G_5

I'd guess at glow plug relay or heater circuit relay. If you tell them what it's for they should be able to advise you.

The parts you need to check are the joints, so where you have a circle of solder around pins etc, just warm them up a bit to make sure it doesn't have any dry joints.

alykhalil

Dave_G wrote:

I'd guess at glow plug relay or heater circuit relay. If you tell them what it's for they should be able to advise you.

The parts you need to check are the joints, so where you have a circle of solder around pins etc, just warm them up a bit to make sure it doesn't have any dry joints.

i managed to open the relay and i have taken some pictures (not the best though) if you can pls have a look....either click on this link or copy paste this link in your brower :

http://www.geocities.com/the_1_shop/gprelay.html

if you see the 1st picture, you will see that A is where the power cable connects, just behind that which is not clear is where the cable from the glow plug connects...

the A is a golden long metal bit with silver top surface which you can see in B
the B and the think plate above it (which is C) dont touch (there a gap) ...or are they not supposed to touch as maybe some magnetic field is between them. another important thing...the whole metal bit from A to B does NOT co-incide with the C..i mean its supposed to be in the center but the A ending in B is tilted, so this makes the center of B NOT aligned to the center of the C plate....i did straightened it which you will see in the picture...and will try to start now...

cheers....

Dave_G_5

Pictures help! Could you take one of the electrical connections?

As you say, A has the main power feed which when B and C close together, should provide power to the glow plugs. The relay is used to switcha high current, so A should be live all the time. What you need to find is the connection that gets 12v switched on with the ignition. This 12v should energise the relay which will close the contact between B and C and switch the main power from A to the glow plugs. If you don't get this 12v then the relay will never work. You need to find it and test it with your lamp.

alykhalil

Dave_G wrote:

Pictures help! Could you take one of the electrical connections?

As you say, A has the main power feed which when B and C close together, should provide power to the glow plugs. The relay is used to switcha high current, so A should be live all the time. What you need to find is the connection that gets 12v switched on with the ignition. This 12v should energise the relay which will close the contact between B and C and switch the main power from A to the glow plugs. If you don't get this 12v then the relay will never work. You need to find it and test it with your lamp.

will try that out, just waiting for rain to top. but i think there is some problem (contact B & C as in the picture) the contact between B & C, even after slightly pushing the plate C down (towards contact it WONT touch the contact B. do you think as soon as the ignition is on they should touch ? but the contact B & C seem pretty away/far and even after trying to make them touch, it wont touch, UNLESS, i push/hit slight the A point up, so that contact B & C get a bit closer...i think here is where the problem lies ?

does this mean that as soon as the ignition is turned on, the contact B & C should touch and when the ignition is turned off, they release ? is that how it works ?

Dave_G_5

Yes, when the coils of wire are energised they should pull plate C down to contact B providing power to the glow plugs, but this won't work if the switched feed to the relay isn't present.

alykhalil

Dave_G wrote:

Yes, when the coils of wire are energised they should pull plate C down to contact B providing power to the glow plugs, but this won't work if the switched feed to the relay isn't present.

well said mate...i am inches away from reaching it..i checked all the connection on the relay and i fixed the relay back with THE COVER OPEN...and connected the earth cable and other cables without screwing them...

then i started the ignition...what i saw was that the plate C does pull down (to touch the power point when ignition is turned on but it (the plate C)pulls down for just 1 second and thats it...it goes back up...and when its pulled down it DONT even touch the point B..theres 1-2 mm gap, slight gap...

so :
1. is the plate C supposed to be pulled down (upon starting the ignition) for just 1 sec ? if yes..how would it power (output) the glow plug cable coming out of relay.

I also tried to touch the plate C to point B with a screwdriver for 10 seconds and then started the engine....THE ENGINE STARTED...

so my is :

if the plate C is supposed to be touching the point B AT ALL TIMES as long as ignition is turned on or it just touches/pulls down for 1 sec from the ignition being turned on and the releases....

i think what i need to do is PUSH the point A up (into the relap box more) so that the plate will be a bit closer to point B...

please advice...i am soooo close to sorting it out..thank you

Dave_G_5

C and B should touch for more than 1 second (approx 10 seconds would be normal), but that might now point to another problem. Basically, they should touch while the glow plug light is on on your dashboard, and on quite a few cars they stay on for a few seconds after starting too. I don't know what provides the timer for this circuit, it might be built in to the relay or it might be a seperate circuit. I'll go and see if I can find out for you. Or it might be going up because it isn't actually making the circuit.

If you can adjust it so that it does make contact when it moves then I would try that first.

alykhalil

Dave_G wrote:

C and B should touch for more than 1 second (approx 10 seconds would be normal), but that might now point to another problem. Basically, they should touch while the glow plug light is on on your dashboard, and on quite a few cars they stay on for a few seconds after starting too. I don't know what provides the timer for this circuit, it might be built in to the relay or it might be a seperate circuit. I'll go and see if I can find out for you. Or it might be going up because it isn't actually making the circuit.

If you can adjust it so that it does make contact when it moves then I would try that first.

i will try making a contact...lets try that way..if you can pls find out more. i mean, lets say i make them contact for longer or if it stays in contact i am worried if something might just blow, you see. so the timer thing might be important to find out. thank you lots