Chittychangchang Posted September 10, 2013 Share Posted September 10, 2013 I like to try and fix my car myself and do my own servicing but this problem has me stumped. When i turn the ignition it take about 30 seconds for the engine to fire up. I've replaced the heater plugs! What else could be the problem? Thanks in advance CCC Link to comment Share on other sites More sharing options...
Maybole Posted September 10, 2013 Share Posted September 10, 2013 Small leak in injector pump allowing fuel pressure to drop until you crank it enough. Easily fixed by pump specialist Link to comment Share on other sites More sharing options...
mogandave Posted September 11, 2013 Share Posted September 11, 2013 Does it take 30 seconds for it to turn over, then fire quickley, or does it turn over for 30 seconds before firing? Link to comment Share on other sites More sharing options...
Chittychangchang Posted September 11, 2013 Author Share Posted September 11, 2013 Does it take 30 seconds for it to turn over, then fire quickley, or does it turn over for 30 seconds before firing? It takes 30 seconds of trying to start, then fires up sluggedly with my foot on the accelerator. thanks for your reply CCC Link to comment Share on other sites More sharing options...
Gsxrnz Posted September 11, 2013 Share Posted September 11, 2013 (edited) Possibly a leak in the pump as said by Maybole. But I suspect a cracked injector is more likely the cause. A cracked injector will require the engine to crank for an extended period of time to re-prime the common rail with sufficient pressure to fire. It will then run OK once started, but you're still losing efficiency and power. You may be able to identify the cracked injector visibly with the engine running. It will appear as a slight atomisation coming from the injector body and you may actually smell the raw fuel. If you can't ID visually, then you're going to have to isolate each pot's fuel supply one by one, cranking each time to see if the cranking period reduces as each pot is isolated. If the cranking time reduces significantly when say pot 3 is isolated, bingo. Edited September 11, 2013 by Gsxrnz 1 Link to comment Share on other sites More sharing options...
Gsxrnz Posted September 11, 2013 Share Posted September 11, 2013 Here's a link to a Toyota handbook on injection diagnostics. Pretty hands on and may be of some use to you. http://www.slideshare.net/BaileysDieselGroup/toyota-1kdftv-common-rail-diesel-injector-installation-manual 1 Link to comment Share on other sites More sharing options...
Chittychangchang Posted September 11, 2013 Author Share Posted September 11, 2013 Here's a link to a Toyota handbook on injection diagnostics. Pretty hands on and may be of some use to you. http://www.slideshare.net/BaileysDieselGroup/toyota-1kdftv-common-rail-diesel-injector-installation-manual Thanks Gsxrnz CCC Link to comment Share on other sites More sharing options...
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