1999 peugeot 406hdi drives great on flat lossing power on hills heavy black smoke on hills have changed airflow meter and egr valve still the same [ there was no 406 in list so picked 405] car i have is as above 406
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Re: loss of power on hills
Hi, i think i answered you in another post. If not then the likely cause of your problem is turbo related the most common cause is one of the pipes going to the turbo has a small split in it causing this problem.
Nearly all the diesel turbo cars with your problem usually means a pipe needs replacing for the turbo this will need to be checked as it can be difficult to find the damaged pipe because they work under high pressure so actually seeing the damaged part can be difficult so check properly. If you are unsure then get a garage to check this as they will know the fault and will have a good idea exactly which pipe is damaged. Worst case of this will be that the turbo needs replacing but this is in the most severe of cases the turbo can blow if the pipe has been damaged for to long as it will be working under the wrong pressure. What happens is when you acelerate the turbo builds up pressure giving you more power when you need it but when the pipe becomes damaged this pressure is lossed and you then lose power and will cause black smoke coming out of exhaust.
Hope this is some help to you but if you have any problems or questions then give me a shout back and ill be glad to assist you further ok
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forums.superchevy.com > ... > General Chevy Technical Discussion
Mar 6, 2011 - 14 posts - 8 authors
Trying to help out a friend. ... The truck starts, runs, and drives fine until you get to a hill. When going up hill it begins to surge, almost stalling but not quite. ... rubber fuel lines suck shut under a heavy load and act like that. .... tranny fluid level o.k.? ya got me stumped. runs great when it's on a flat surface?
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Will not take gas going up a hill but will maintain speed at 55 mph. ... Want to do a diagnostic test on my 1997 F250 with 460 engine. ... only get to about 40 miles an hour if i push it the engine acts like its running out of gas,thank you .... The truck hesitates on acceleration, while driving on flat surface is fine, however climbing ...
Needs piston rings. You have lost compression so you are losing power. The oil is getting pasty the worn rings and entering the combustion chamber which would explain the black smoke and loss of power.
The battery in a 2002 Audi A4 is located at the rear of the engine compartment (back near the windshield) & has a tie down requiring a 6mm Allen wrench to remove it.---------------------------------------------------------------------------------------- auto HID Xenon light
sounds like either a vacuum leak (check the bottom of the "tomatoe juice can" for starters) or a bad or plugged egr valve or egr solenoid. check engine lite refers to emissions probs only...most likely egr or vac leak. Had the same prob on my 95 5.0 f150...needed new can and egr valve.
it sounds like your turbo has packed in firstly the oil seal in your turbo has failed thats why ur seeing oil from exhaust & the whistling from turbo is the vanes in turbo breaking up so i would advise not to use car until new turbo is fitted & inter cooler pipes and inter cooler itself are checked & cleaned for swarf from turbo you can check turbo by disconnecting turbo pipe &inspecting turbo vanes (fins) to see if broken up or any damage to chamber.
Hi, I have a 2.0HDI Expert which was doing the exact same thing as yours, blowing thick black smoke, sluggish and loss of power on gradients, a hissing sound and surging. I replaced the air flow meter but that didn't help. I was told to replace the turbo but a turbo expoert told me not to as it would blow white smoke if it was faulty. I was then told to replace the injectors but a diagnostic test showed them to be functioning fine. I was then told to look at the intercooler which had thick sludge at the lower left pipe. I replaced it today - Sunday 12th July and it is now driving like a new van. It now pulls me up gradients with ease in 4th and 5th instead of having to drop gear to get to the top. I got a replacement from Euro Car Parts for £147 inc VAT. To tell if this is your problem, look through the gaps in the lower section of the bumper at what looks like the radiator and look for sludge over the inside of the bumper and all over the pipe where it joins the back of the radiator (intercooler). Also open the bonnet and look down behind the grille for the same sludge. Hope this sorts it for you. Barry, Newtownards, Northern Ireland.
hi, this problem could be valve stem oil seals these are cheap to buy but will require the top half of the engine been stripped and rebuilt. If the car has a turbo then you might find that its just a turbo pipe split this is often the case on most cars that have turbo as your is diesel then you should have a turbo. This would be my first choice to get looked at as usually its just a pipe to the turbo has split and this causing the problem your having. Replacing this should not cost to much as it is common problem so look at this first.
Worst case it could be the turbo needs replacing but getting a garage to check this for you is the best bet but hopefully it is just a split pipe going to the turbo. Most diesel cars with your problem that i have worked on is usually one of the pipes for the turbo has a split in it so replacing this will solve your problem ok. let me know if you have any problems or questions and ill be glad to assist you ok.