Step 8: Evaluate the resistance value. Has any one got any ideas please. Called cdti engine to body earth mod. Test the voltage of the battery. Instead of producing a timed spark to ignite the fuel mixture, like spark plugs do, glow plugs simply serve to produce additional heat that aids the diesel engine combustion process during. Could anyone shed some light on this! Mon 26 Dec 2011 18:45 Vauxhall Astra H 1.
Again, the reading that you get should be measured in Ohms Ω. Consult the shop manual of your vehicle to find the location of the glow plugs in the engine. A digital multimeter shows the exact number result of the test. User Alert System provided by - Copyright © 2019 DragonByte Technologies Ltd. They are similar to spark plugs in design; however, they differ in their primary function.
They have just confirmed a record week in terms of the amount of business they have done through the forums so it's certainly worth a call. Hi, I'm trying to change the glow plug relay on my 2006 1. As an aside, I did this 3 times, so 3 x 5 seconds voltage applied to the plugs, and it still needed to crank far too long before starting. Remove the cover or cap in order to apply the multimeter clamps to the glow plugs. Refer to your shop manual to determine the test specs for your vehicle. To start viewing messages, select the forum that you want to visit from the selection below. Find resistance value of your multimeter.
You now need to individually test each glow plug to find the faulty one s using a reliable test meter that can measure very low ohms. Most if not all modern diesel engines are Direct Injection, and they are not dependant on glow plugs for cold starting. The reading should be close to 12. These tools clean out carbon buildup in the area inside the combustion chamber or precharge chamber. Step 2: Locate the glow plugs in your engine.
If the glow plug resistance exceeds the specification or falls out of the acceptable range, then the glow plug must be replaced. One glow plug with a higher resistance can affect your engine's performance--even if the plug is still good. For interests sake, one of them metered 44. Then i went to glow plug relay near battery and tested for perminant live feed ,ignition live feed and an earth as explaned on ad and all are present so i assumed it was a faulty relay and got a new one from vauxhall. The true resistance value of the glow plug can be determined by taking the resistance value of your multimeter recorded in Step 2 and subtracting it from your glow plug resistance value recorded in Step 6.
Glow plugs certainly the type used in the 1. I got a 12mm deep walled socket and an extensoin bar that allows an angled connection as well as straight in. There will be two long vertical lines containing the range of the ohms. Any help or advise on this would be very much appreciated. In my original message i said the glow plug light was not coming on when the ignition was switched on? If one or more of the glow plugs is faulty, replace all of them. Damn im so dumb lol the reason I couldnt see it was because it looks like ive got an aftermarket battery which is a lot bigger than the standard one so its covering the glow plug relay.
If one or more of the glow plugs is faulty, replace all of them. Remove the cover or cap in order to apply the multimeter clamps to the glow plugs. Take the positive lead of your multimeter and touch it to the terminal on your glow plug. When we had colder weather a few weeks back the car was struggling to start up so it's definitely something about the glow plugs, would like to get this fixed before it's needed again! Step 7: Calculate the resistance value. These wires are attached to bolts.
Take this opportunity to clean them. They're actually for noise reduction and for improving emissions when the engine is cold. Tue 27 Dec 2011 17:02 Vauxhall Astra H 1. Use the lowest ohms setting. Now hold one meter probe against the feed terminal of glowplug 1 and the other meter probe against the glowplug sleeve or hex part of its body. It's ex-Thames Valley Police, so very well serviced.