Very black smock with black powder, poor acceleration, AC on Car RPM drop down sudden and car stops

Tiny
DENNRY0
  • MEMBER
  • 2008 FORD FIESTA
  • TURBO
  • FWD
  • MANUAL
  • 20 MILES
My ford fiesta is in trouble. Fallen down the speed and not getting power as I accelerate.

and black smoke and black powder . Usually when pressing hard on accelerator and starting time.

I have checked on computer it was giving MAF sensor error but when I check MAF it was giving good readings. Now mechanic told me that we should change MAF but I am not sure about it that it will work good enough after changing MAF.

My car has driven 1, 03,000 Km.

What should I do?

my car was once overheated but I noticed and stopped at that time. And after that I clear that issue soon.

Is overheating nearly @ 120 Celsius for lil time…!

Car is starting and working. But no power. Mean no turbo pick up. And black smock / and black powder comes from exhaust when I press hard on accelerator.

EGR pipe inspected with too much carbon. And I cleaned. Then no error of EGR for while.

After sometime again EGR problem seen. Should I clean it or replace it?

MAF sensor changed but still poor acceleration.

Turbo checked and its working fine as ford technician said.

No other engine voice as technician said.

please help!
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Saturday, November 21st, 2015 AT 10:41 AM

12 Replies

Tiny
HMAC300
  • EXPERT
Check fuel pressure with a gauge in U.S. Auto parts rent it. Scan for codes it may be a wire bad at maf shorting out. Also check for blockages and no air leaks in duct work leading from maf to engine.
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Saturday, November 21st, 2015 AT 11:05 AM
Tiny
DENNRY0
  • MEMBER
Thanks for reply!

I have checked for wires it is ok. Also I have cleaned all connectors!

MAF to engine. No air leaks.

I will check for fuel pressure as u said!

Should I change engine oil and oil filter as car driven over 6500 miles

And there was too much carbon found in EGR and EGR pipe was also much jammed. I cleaned but again after some drive with all dark black smock powder it is showing some problem in EGR.

Thanks!
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Saturday, November 21st, 2015 AT 9:54 PM
Tiny
HMAC300
  • EXPERT
Get the code to see what it is it may be a vacuum or electrical problem besides clogged passageways or pintle on egr.
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Sunday, November 22nd, 2015 AT 3:42 PM
Tiny
DENNRY0
  • MEMBER
Thanks For reply but Still there is a same problem!

Even ford technician couldn't tell me exact problem they said that replace MAF and EGR valve and then problem persist we will go to engine. :(
can it be engine problem?

;(
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Monday, November 23rd, 2015 AT 9:46 PM
Tiny
HMAC300
  • EXPERT
Scan for codes and check fuel pressure with a gauge first
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Tuesday, November 24th, 2015 AT 7:18 AM
Tiny
DENNRY0
  • MEMBER
Now Car is not starting!

Engine is not getting compression technician said. ! :(((
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Thursday, November 26th, 2015 AT 11:42 PM
Tiny
DENNRY0
  • MEMBER
Thanks for your help!

I have decided to sell it now!
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Thursday, November 26th, 2015 AT 11:43 PM
Tiny
DENNRY0
  • MEMBER
They told me not any issue with fuel gauge!

Engine is not getting compression!

There is work in the engine!

What should I do?

Should I sell?

As they told me a huge estimate expense?
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Friday, November 27th, 2015 AT 1:24 AM
Tiny
HMAC300
  • EXPERT
Look at it this way if it has low compression you need to find out the cause if it's valves then it will be cheaper to fix. If you have the car paid for then see what a replacement will cost vs fixing your current vehicle.
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Friday, November 27th, 2015 AT 7:22 AM
Tiny
DENNRY0
  • MEMBER
Thanks! I will see!

Can you give some more details? How to check it?
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Friday, November 27th, 2015 AT 9:31 AM
Tiny
HMAC300
  • EXPERT
Check compression
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Friday, November 27th, 2015 AT 9:54 AM
Tiny
DENNRY0
  • MEMBER
Ok.
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Friday, November 27th, 2015 AT 9:57 AM

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