Hi all, I have an 09 Fiat 500 turbo diesel manual tans. I bought it with issues, believed to be blocked DPF. The previous owner had replaced the fuel pump, the glow plugs and the injectors chasing a problem, and bailed out when it still gave trouble.
I removed the DPF and flushed it until high pressure water came out clean. I also removed the turbo and checked it-no movement in the shaft and no oil stains, and hardly any oil in the intercooler. I reassembled the car and ran it. perfect idle and no issues until it got to operating temperature and put under load.
A knocking (almost like a failed big end) noise came from the engine bay, maybe 6 or so knocks / clanks, then white smoke came pouring out of the tail pipe. No smoke in the engine bay, just out the pipe. I drove it back home smoking like James Bonds smoke screen car- no knocking just smoke.
I left it for a day, and tried again. Car drove perfectly for about a mile, no smoke, then some more knocking and smoke again, also felt like the engine was down on power - feeling like a miss.
Day 3 I sprayed a can of EGR cleaner into the air inge and went off for a drive. Went 10 miles at 3000-3500 RPM and all good. got a few little spurts of rattle and puff of smoke when it made noise but backing off stopped the noise and smoke. Loading up the car then made the noise come on faster, and the smoke quite profuse, I really had to limp it home to avoid the rattle and smoke.
Any ideas as to what this knocking / clanging is? When it happens then the smoke comes, I get the feeling its a solonoid or valve that opens and shuts and gets stuck causing the smoke. Could this be EGR? All help greatly appreciated
I removed the DPF and flushed it until high pressure water came out clean. I also removed the turbo and checked it-no movement in the shaft and no oil stains, and hardly any oil in the intercooler. I reassembled the car and ran it. perfect idle and no issues until it got to operating temperature and put under load.
A knocking (almost like a failed big end) noise came from the engine bay, maybe 6 or so knocks / clanks, then white smoke came pouring out of the tail pipe. No smoke in the engine bay, just out the pipe. I drove it back home smoking like James Bonds smoke screen car- no knocking just smoke.
I left it for a day, and tried again. Car drove perfectly for about a mile, no smoke, then some more knocking and smoke again, also felt like the engine was down on power - feeling like a miss.
Day 3 I sprayed a can of EGR cleaner into the air inge and went off for a drive. Went 10 miles at 3000-3500 RPM and all good. got a few little spurts of rattle and puff of smoke when it made noise but backing off stopped the noise and smoke. Loading up the car then made the noise come on faster, and the smoke quite profuse, I really had to limp it home to avoid the rattle and smoke.
Any ideas as to what this knocking / clanging is? When it happens then the smoke comes, I get the feeling its a solonoid or valve that opens and shuts and gets stuck causing the smoke. Could this be EGR? All help greatly appreciated