Steps Posted August 5, 2021 Share Posted August 5, 2021 I have a Mazda Fighter Truck that used to start fine. I took it for a wash and the next day it would not start. One morning trying to start it the starter motor caught fire which i quickly extinguished. A part on the motor has since been replaced which seemed to do the job. However, the next day the truck would not start again. It takes about 3 tries to get it started. When it does start i get black smoke coming out of the exhaust. Does anybody have any idea what may be the problem? Thank you 1 Link to comment Share on other sites More sharing options...
lodstewart Posted August 5, 2021 Share Posted August 5, 2021 are we talking petrol or Derv 1 Link to comment Share on other sites More sharing options...
Popular Post Ralf001 Posted August 5, 2021 Popular Post Share Posted August 5, 2021 1 minute ago, lodstewart said: are we talking petrol or Derv What is Derv ? 3 Link to comment Share on other sites More sharing options...
Steps Posted August 5, 2021 Author Share Posted August 5, 2021 3 minutes ago, lodstewart said: are we talking petrol or Derv Diesel, 2.5L Turbo. I was thinking maybe the glow plugs? Link to comment Share on other sites More sharing options...
Popular Post lodstewart Posted August 5, 2021 Popular Post Share Posted August 5, 2021 Just now, Ralf001 said: What is Derv ? Diesel engine road vehicle 4 Link to comment Share on other sites More sharing options...
lodstewart Posted August 5, 2021 Share Posted August 5, 2021 I know this may sound strange, but trust me , it would be worth changing the coolant sensor. 1 2 Link to comment Share on other sites More sharing options...
Steps Posted August 5, 2021 Author Share Posted August 5, 2021 1 minute ago, lodstewart said: I know this may sound strange, but trust me , it would be worth changing the coolant sensor. Yes thats an unusual answer. Why would you recommend that, curious!! Link to comment Share on other sites More sharing options...
Popular Post lodstewart Posted August 5, 2021 Popular Post Share Posted August 5, 2021 its the cause of many starting and mixture problems due to the sensor signal to the ECU on temprature instruction its a simple and cheap check, just to eliminate that before you go deeper and more costly. 3 Link to comment Share on other sites More sharing options...
Crossy Posted August 5, 2021 Share Posted August 5, 2021 How old is the beast? Regularly serviced? How far has it been? When it fails to start does it spin over well and just not fire or what? Black smoke from a diesel suggests over-fuelling or a dribbly injector. Does it have any ECU/performance mods? I'm not sure either of our diesels even has glow-plugs, there's certainly no delay to start, press the button and it spins over immediately. Link to comment Share on other sites More sharing options...
Gottfrid Posted August 5, 2021 Share Posted August 5, 2021 No problem. You should wait until it takes 5 tries. 1 Link to comment Share on other sites More sharing options...
Popular Post Ralf001 Posted August 5, 2021 Popular Post Share Posted August 5, 2021 27 minutes ago, lodstewart said: Diesel engine road vehicle Thanks, Ive not heard that one before. 3 Link to comment Share on other sites More sharing options...
Anythingleft? Posted August 5, 2021 Share Posted August 5, 2021 Black smoke is over fueling, when you took it for the wash did they do the engine bay and possibly leave a rag in the air intake..? It has been known before. 2 Link to comment Share on other sites More sharing options...
Popular Post Kwasaki Posted August 5, 2021 Popular Post Share Posted August 5, 2021 1 hour ago, Steps said: Does anybody have any idea what may be the problem? Well if everything was OK before the wash apart from starter motor sounds like water trap in the electrics somewhere messing up fuel controls etc. 4 Link to comment Share on other sites More sharing options...
talahtnut Posted August 5, 2021 Share Posted August 5, 2021 1 hour ago, Steps said: Does anybody have any idea what may be the problem? If the black smoke clears after a few minutes, followed by some whitish smoke, you may have a little water in the tank. Link to comment Share on other sites More sharing options...
nobodysfriend Posted August 6, 2021 Share Posted August 6, 2021 Check the air filter . 1 1 Link to comment Share on other sites More sharing options...
inThailand Posted August 6, 2021 Share Posted August 6, 2021 Water got into the fuel system? From the washing? Did you ever change the fuel filter? Link to comment Share on other sites More sharing options...
hotchilli Posted August 6, 2021 Share Posted August 6, 2021 17 hours ago, Gottfrid said: No problem. You should wait until it takes 5 tries. Or make it one long one. 1 Link to comment Share on other sites More sharing options...
Popular Post Kwasaki Posted August 6, 2021 Popular Post Share Posted August 6, 2021 (edited) 18 hours ago, Crossy said: How old is the beast? Regularly serviced? How far has it been? When it fails to start does it spin over well and just not fire or what? Black smoke from a diesel suggests over-fuelling or a dribbly injector. Does it have any ECU/performance mods? I'm not sure either of our diesels even has glow-plugs, there's certainly no delay to start, press the button and it spins over immediately. Even in hot climates diesels cool down so they still need glow plugs, there's only a problem in old vehicles but there cheap and easy to change, the cables to them when old can be a problem sometimes. Edited August 6, 2021 by Kwasaki 2 1 Link to comment Share on other sites More sharing options...
Popular Post Crossy Posted August 6, 2021 Popular Post Share Posted August 6, 2021 3 minutes ago, Kwasaki said: Even in hot climates diesels cool down so they still need glow plugs, there's only a problem in old vehicles but there cheap and easy to change, the cables to them when old can be a problem sometimes. Yeah, the lid on the Isuzu stays firmly shut (except for a fluid check) let the dealer deal with things in there, much too complex. The Ford hides everything under a plastic cover, I've never actually looked for glow-plugs. Our old Ford bus in the UK didn't have glow-plugs, what it did have was a coil in the inlet manifold which glowed red, operating the starter sprayed diesel on the coil leading to a nice conflagration which then got pulled into the cylinders. I remember my dad holding a burning diesel soaked rag over the air intake (air filter off) whilst I operated the starter on those really chilly mornings when it really didn't want to wake up (neither did I but it needed two of us). 3 Link to comment Share on other sites More sharing options...
ThaiFelix Posted August 6, 2021 Share Posted August 6, 2021 18 hours ago, lodstewart said: I know this may sound strange, but trust me , it would be worth changing the coolant sensor. Do you by any chance sell coolant sensors 5555! 1 Link to comment Share on other sites More sharing options...
sherwood Posted August 6, 2021 Share Posted August 6, 2021 I have a Nissan 2.5 diesel that smoked quite bad, started and ran ok but most of the breather tubes were cracked or broken so I changed them all and the thing goes even better now and zero smoke. Glow plugs are the first place I would look at. If they look rooted then they more than likely are. What fuel do you use. Good luck. 1 1 Link to comment Share on other sites More sharing options...
Popular Post Muhendis Posted August 6, 2021 Popular Post Share Posted August 6, 2021 19 hours ago, Steps said: Yes thats an unusual answer. Why would you recommend that, curious!! The coolant temperature sensor may be signaling a hot engine to the computer so the fuel injector timing would be adjusted for a hot engine. 2 1 Link to comment Share on other sites More sharing options...
Muhendis Posted August 6, 2021 Share Posted August 6, 2021 18 hours ago, Ralf001 said: Thanks, Ive not heard that one before. Then you must be quite un-old. It's a term that used to be in regular use 60 or so years ago.. 1 Link to comment Share on other sites More sharing options...
davidhen Posted August 6, 2021 Share Posted August 6, 2021 First mistake --- you washed it! When I was in the outback in Oz back in the 70s, driving an old Holden station wagon, I used to keep a big hammer in the car. If it failed to start, I whacked the battery and the starter motor with it and... varoom! I suppose it's too much to ask if you've tried using the starting (crank) handle. LOL. Link to comment Share on other sites More sharing options...
brianthainess Posted August 6, 2021 Share Posted August 6, 2021 I found that even if only one glow plug wasn't working, it still won't start on some diesels even in this climate. black smoke is unburned fuel and should clear if not pump/injectors need checking. 1 Link to comment Share on other sites More sharing options...
Ralf001 Posted August 6, 2021 Share Posted August 6, 2021 1 hour ago, Muhendis said: Then you must be quite un-old. It's a term that used to be in regular use 60 or so years ago.. Ahhh that explains its, I did not arrive until 1970. Link to comment Share on other sites More sharing options...
ravip Posted August 6, 2021 Share Posted August 6, 2021 19 hours ago, Anythingleft? said: Black smoke is over fueling, when you took it for the wash did they do the engine bay and possibly leave a rag in the air intake..? It has been known before. Or water got in to the air intake/air filter? Link to comment Share on other sites More sharing options...
Popular Post Billpro785 Posted August 6, 2021 Popular Post Share Posted August 6, 2021 (edited) First item would be to check for any soft or hard codes in the ECU. Buy a OBD reader online, a cheap 30.00 USD unit will do the job. Even though the check engine light might be not be on, It could be a " soft code" stored in the ECU. Easy to use the scanner , just plug into the port and read the codes if any. At least it will point you in the right direction. As it ran ok before cleaning, most likely some water got into a electrical connector and is causing a short and or bad ground. Open the hood, and park the truck in the sunlight to dry out the engine bay. Also try and start at night and look for any sparking in the connectors. As stated before if diesel , check the water separator for any water. Edited August 6, 2021 by Billpro785 3 Link to comment Share on other sites More sharing options...
Kwasaki Posted August 6, 2021 Share Posted August 6, 2021 2 hours ago, Crossy said: Our old Ford bus in the UK didn't have glow-plugs, what it did have was a coil in the inlet manifold which glowed red, Big engine I guess probably a Cummings lump. ???? Link to comment Share on other sites More sharing options...
Popular Post soalbundy Posted August 6, 2021 Popular Post Share Posted August 6, 2021 You think you have problems, my wife returned home yesterday after passing her driving test, all went well until she drove into our driveway. 1 1 4 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now