V8SMYMATE Posted May 27, 2008 Share Posted May 27, 2008 Hi wonder if you lads out there can help! I have a Disco 95 reg 3.9 auto i have a starter issue when i start from cold it seems to rank along time before starting after shes warmed up it starts fine or it wont start at all. The starter just clicks after repeated attempts it will start fine. any idears? is likley to be battery or the starter ta Quote Link to comment Share on other sites More sharing options...
pinkbeef Posted May 27, 2008 Share Posted May 27, 2008 It sounds as if the starter solenoid has a problem, I'm not familiar with the starter you have in your vehicle, but they work in the same way. Just in case you don't know; the starter motor requires a large amount of ampridge to turn it over ( which is why the cable is so large 10mm in size ). To avoid having to run such a large wire up to the ignition switch and having to use a large ignition switch. a solenoid is fitted to the starter motor. the solenoid is just a relay which can handle the required current. when you turn the ignition switch, you send a small current from the ignition switch to the solenoid switch. Which energises a pin, which in turn is fired into the high current contacts and connects the battery directly to the starter motor. It sounds like the solenoid is the problem, I would test this by finding the battery connection to the solenoid and the starter motor connection to the solenoid. Using a piece of metal. connect both together. CAUTION THIS MAY TURN THE STARTER MOTOR OVER AND WILL CAUSE ARKING WHEN THE CONNECTION IS MADE. --------So don't have the ignition switched on make sure the vehicle in in natural with the hand break on and keep away from any thing that will spin if the enging is turned over by the starter motor---------. If the starter motor turns then I would go with the starter solenoid. but if the starter motor turns slowley and runs down a full battery quickley, it may be the starter motor is earthing ( shagged ). but before you do this check the connections too the following are tight and sound; 1.battery live and earth. 2.starter connections to both sides of the solenoid. 3.earth from the vehicle chassis to the engine or starter motor. Don't just look at the connections, see if you can move them, look to see if there is rust preventing a good sound connection. If you have to undo the bolts and have a good look. Quote Link to comment Share on other sites More sharing options...
BogMonster Posted May 27, 2008 Share Posted May 27, 2008 If it's got a 2 button alarm check out the spider Quote Link to comment Share on other sites More sharing options...
V8SMYMATE Posted May 28, 2008 Author Share Posted May 28, 2008 It sounds as if the starter solenoid has a problem, I'm not familiar with the starter you have in your vehicle, but they work in the same way.Just in case you don't know; the starter motor requires a large amount of ampridge to turn it over ( which is why the cable is so large 10mm in size ). To avoid having to run such a large wire up to the ignition switch and having to use a large ignition switch. a solenoid is fitted to the starter motor. the solenoid is just a relay which can handle the required current. when you turn the ignition switch, you send a small current from the ignition switch to the solenoid switch. Which energises a pin, which in turn is fired into the high current contacts and connects the battery directly to the starter motor. It sounds like the solenoid is the problem, I would test this by finding the battery connection to the solenoid and the starter motor connection to the solenoid. Using a piece of metal. connect both together. CAUTION THIS MAY TURN THE STARTER MOTOR OVER AND WILL CAUSE ARKING WHEN THE CONNECTION IS MADE. --------So don't have the ignition switched on make sure the vehicle in in natural with the hand break on and keep away from any thing that will spin if the enging is turned over by the starter motor---------. If the starter motor turns then I would go with the starter solenoid. but if the starter motor turns slowley and runs down a full battery quickley, it may be the starter motor is earthing ( shagged ). but before you do this check the connections too the following are tight and sound; 1.battery live and earth. 2.starter connections to both sides of the solenoid. 3.earth from the vehicle chassis to the engine or starter motor. Don't just look at the connections, see if you can move them, look to see if there is rust preventing a good sound connection. If you have to undo the bolts and have a good look. Thanks for the info i will try tomorrow Quote Link to comment Share on other sites More sharing options...
V8SMYMATE Posted May 28, 2008 Author Share Posted May 28, 2008 If it's got a 2 button alarm check out the spider thanks for you suggestion but i have removed the spider as i have already had that one Quote Link to comment Share on other sites More sharing options...
rocky Posted May 28, 2008 Share Posted May 28, 2008 Hi, i had a similar problem with mine although it is a 300 tdi, i ran a jump lead from the earth terminal to the engine to test the earth lead and the engine fired up as it should. so i connected an earth lead from the battery to the a/c housing and have had no probs since. Rocky Quote Link to comment Share on other sites More sharing options...
V8SMYMATE Posted May 28, 2008 Author Share Posted May 28, 2008 Hi, i had a similar problem with mine although it is a 300 tdi, i ran a jump lead from the earth terminal to the engine to test the earth lead and the engine fired up as it should. so i connected an earth lead from the battery to the a/c housing and have had no probs since. Rocky thanks i will give it a try Quote Link to comment Share on other sites More sharing options...
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