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Terry Ford Sr. Posted on Nov 02, 2019
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My 550 hisun 2017 is having RPM problems he goes to 5 to 6 before it will pull away what is the problem

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Bogdan Odwazny

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  • Cars & Trucks Master 6,171 Answers
  • Posted on Nov 03, 2019
Bogdan Odwazny
Cars & Trucks Master
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Joined: Jan 20, 2013
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Any codes? There are two sensors RPM and AIC, codes will tell which one.

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1answer

Mitsubishi lancer fuel pressure sensor fault

engine problem, and no engine told at all.
No year told now that is a hard ROW TO HOE. 1973 to 2017 outside asia. wow so hard to guess year no? crazy hard.
NO country told and that fact helps point to 10 engine used world wide.
Diesel engines but is it turbo charged.
NO DTC errors to tell? just PID = 8000 psi?
is idle RPM at spec?
leaking injectors or bad 2000 bar pump or RPM way too low.
GEN 9, 2007 first diesels, is my wild wild guess is this./
  • Diesel:
  • 1.8 L 4N13 turbo I4 (part Renault) CSR (I guess this)
  • 2.0 L VW BWC turbo I4
get the service manual is best. for sure presssures
common rail solenoid Injectors?
some have pressure regulator, ? 2,000 bar ,says web searches.
29k PSI,

on the pump is this SCV (is modulated by PCM)(ECU)
the tank feed pump feeds this, SCV. my guess is this is bad,
Diesel Fuel Pump Pressure Regulator Suction Control SCV Metering Valve 294200-2960 For Mitsubishi Lancer 4N13 4N15 the rail end has pressure limited, that opens at 2400 bar.
if it leaks , pressures fall. but my guess is ok. here.

my guess is the 8000 psi, failure is real the sensor did no lie.
550- bar is too low. (using bar, pressure seen in Denso manuals 4N13)

see page 14 for they whole deal

https://www.service-engine.com.ua/webroot/pdf/MITSUBISHI%204N13,%204N14%20ENGINES.pdf
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I have audi A6 2.4 model 2006. When I start the car in morning, the battery sign appears after a couple of seconds. But when I accelerate a bit it goes away. The normal position of the rpm should be about...

Afraid not. Although the light goes out it still may not be charging very little charge will put the light out. the other reason I feel it's the alternator is instead of rpm increasing it should decrease as a properly charging alternator should pull the engine which should decrease the rpm
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Humming sound at around RPM level 2 car

this could be a bad wheel bearing.
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Speedometer stops displaying then the car runs very erratic... pull over and stop... the problem goes away, continue driving for a while then problem comes back

Your car is equipped with a speed sensor. When this sensor goes out it will cause the vehicle to run erratically and shift up and own at all the incorrect speeds and RPM's. Have your speed sensor checked. I'm sure that is the problem.
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What is the timing specs for a 1968 ford thunderbird

The timing specifications for that vehicle with all V-8 engines 302, 390, 428, 429 are the same.

Spark Plug Type: BF32

Spark Plug Gap: .034 In. - .035 In.

Ignition Point Dwell Angle: 27 Degrees

Ignition Point Gap: .021 In.

Ignition Timing: 6 Degrees Before Top Dead Center

Engine Compression: 150 Psi.

Engine Idle Speed:

302-390-428 Engines: 625 Rpm M/T or 550 Rpm A/T

390 GT Engine: 700 Rpm M/T or 550 Rpm A/T

429 Engine: 550 Rpm M/T or A/T



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0helpful
1answer

RPM at idle, and T.D.C degree

5.0 L with CFI = 550 rpm

5.0 L with CFI = 10 degrees @ 550 rpm

5.0 L with a 4bbl carb = 700 rpm

5.0 L with a 4bbl carb Calif. = 10 degrees btdc @ 800 rpm

5.0 L with a 4bbl carb Fed. = 12 degrees btdc @ 800 rpm

cheers mate !
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Rattling post 2000 rpm in every gear

Sounds like the timing belt tensioner. I have that problem. Rattles at low rpm, goes away as you acceralerate. Looking to have timing belts changed and tensioners replaced.
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