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Seamus Byrne Posted on Nov 29, 2013
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Would a faulty electric fuel pump relay be the reason there is no power going down to the fuel pump in a 2002 suzuki grand vitara 2.0 rhz diesel engine

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  • Seamus Byrne
    Seamus Byrne Nov 30, 2013

    I have taken the electric fuel pump out and bench tested it with the battery but there is no power going down to the live as i have tested it with a test light would a faulty pump relay cause no power to be going or would it be a faulty ECU. Thanks for any info on it

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Tony Cantero

Tony Cantero

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  • Posted on Nov 29, 2013
Tony Cantero
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Joined: Sep 30, 2010
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To test fuel flow, have a 2nd person stand over air filter (air filter housing open) with a can of starting fluid in one hand. Don't give any throttle, then 2nd person gives 1-second squirt into air filter while you're turning starter motor (no throttle). When engine catches, immediately give one third to one half throttle. Just before it dies, 2nd person should give another short squirt of starting fluid to keep engine from dying. If throttle won't keep engine running and only starting fluid keeps it running, then yes, no fuel is going through fuel lines. Either its a fuel pump issue or maybe there's restriction because of clogged dirty fuel filter. If it starts but runs rough and has black exhaust smoke, then its clogged or dirty fuel injectors.

Testimonial: "Hi Thanks for your info I have checked the live wire at the electric fuel pump with a test light and there is no power going to the fuel pump, would a faulty fuel pump cause this or would it be the ECU that is faulty Thanks for any advice"

2 Related Answers

ZJLimited

ZJ Limited

  • 17989 Answers
  • Posted on May 15, 2010

SOURCE: How to change the fuel filter on a suzuki grand Vitara

Fuel FIlter - Removal

  1. Relieve fuel system pressure.
  2. Remove or disconnect the following:
    Negative battery cable Fuel lines from the fuel filter Fuel filter
To install:
  1. Install or connect the following:
    Fuel filter and tighten the bracket bolt. Note the fuel flow directional arrow. Fuel lines to the fuel filter. Negative battery cable
  2. Start the engine and inspect the fuel filter connections for leaks.

  1. Before servicing the vehicle, refer to the Precautions section.
  2. Relieve fuel system pressure.
  3. Remove or disconnect the following:
    Negative battery cable Fuel lines from the fuel filter Fuel filter
To install:
  1. Install or connect the following:
    Fuel filter and tighten the bracket bolt. Note the fuel flow directional arrow. Fuel lines to the fuel filter. Negative battery cable
  2. Start the engine and inspect the fuel filter connections for leaks.
Fuel filter is incorporated in fuel pump assembly in fuel tank.

Hope this help.

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cy schousboe

  • 2002 Answers
  • Posted on Nov 24, 2013

SOURCE: is there a sensor that sends a signal to the glow plug relay to say that the engine is cold and trigger the relay to heat the glow plugs in a 2002 suzuki grand vitara with the 2.0 hdi rhz code engine

It will work through the temperature sending unit for the engine. You may have one or two. Some companies dedicate one temp sensor for the glow plugs and some don't.

Testimonial: "Thanks for your help"

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0helpful
2answers

2009 Suzuki Grand Vitara starts then stops after 2 seconds. There's no Schrader valve to check fuel pressure.
How to check Fuel Pressure.

https://www.google.com/search?q=2009+suzuki+grand+vitara+fuel+pressure+schrader+valve

Videos and ideas

https://www.google.com/search?q=2009+Suzuki+Grand+Vitara+starts+then+stops+after+2+seconds

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Jul 12, 2023 • 2009 Suzuki Grand Vitara
0helpful
1answer

SUZUKI SUV Grand Vitara diesel glow light on and there is loss of power
no year told , nor country.
sold all over earth with lots of different engines,
my guess in Europe
1988 to1998.
or
1999 t0 2005
2.0 L RF/RFM I4 turbo-diesel
2.0 L RHW/RHZ I4 turbo-diesel
2005 to 014

1.9 L F9Q I4 turbo-diesel
2015 up
1.6 L D16AA DDiS I4-TD

no telling year, country , and which diesel is here, makes answers
10x more hard. so now I go GENERIC and vague.

  1. bad fuel, now filters are bad. , water in fuel or worse./
  2. clogged air filter.
  3. injectors clogged.
  4. newer diesels, have EFI sensors that can be bad.
  5. injection pump bad or messed with and fails.
  6. engine compression fails. (a test)
  7. tank lift pump bad,
  8. and more but no engine or year told.
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May 31, 2023 • Cars & Trucks
0helpful
1answer

Where is the fuel pump relay on a 2.0 d suzuki vitara 2005
the NON_GRAND VITARA is not here in 2005 sorry.
2.0D (that mean diesel?)
vitara are sold all over planet earth. where are you????
nor are they the SAME,
and vast engine options, there is a J20 gas engine.
the diesel is unlike any gas cars. all parts. related.
2.0 L RF I4 (diesel)
eg;
he RF is a SOHC, two valves-per-cylinder engine. (older FE)
One of Mazda's more popular diesel engines, it was also available with a pressure wave supercharger called Comprex.

my guess is that sparse "D" means diesel.
this is usa forum we dont have the RF here.
actually there are 4 engines.
2.0 L RF/RFM I4 (diesel)
2.0 L RHW/RHZ I4 (diesel)

learn that all diesels have there own matching parts
and that means pumps ,relays EFI, etc. all parts fuel. for sure.

As of 2003, the smaller Suzuki Vitara has been withdrawn from the North American market.!!!!!!
no engine, no books. no car. strike 3.
why not post to a non usa car forum even a real suzuki forum.?

many suzuki use a large pink wire for the pump power
this can be a big clue, looking at the relays.
Read full answer
May 31, 2016 • Suzuki Cars & Trucks
0helpful
2answers

I have a 2001 suzuki vitara where is the fuel pump relay is located
SUZUKI GRAND VITARA SERVICE REPAIR MANUAL 1998 1999 2000 2001 2002 2003...

get your car fix right now
Read full answer
Apr 05, 2016 • Suzuki Vitara Cars & Trucks
0helpful
1answer

Where is the fuel cut off switch on a 2001 suzuki grand vitara
why not post symptoms and ask a question.???
no engine size stated of the 3.
first off. there is no such switch.!
THE PCM on ALL suzuki's made In usa (ours vary)control the fuel pump and injectors under all conditions, not you, or any switch
it has no inertial switches like FORDs, its not a Ford.

the PUMP (fuel)
is activated cranking, the PCM closes a relay the relay sends 12vdc to the pump cranking ,an when running,
if the engine stalls for any reason the PCM cuts fuel at the injectors
and the PUMP.
that is how it works,
reasons to cut fuel are.
1: not running
2: lost spark
3: lost spark precursors, CMP /CKP senders, (same as lost spark)
4: cuts fuel cranking in the wide open throttle crank mode (super secret unflood mode,)
Read full answer
Feb 11, 2015 • 2001 Suzuki Grand Vitara
0helpful
1answer

How can I located the fuel pump relay 1999 suzuki grand vitara
old post
RTM the fsm covers all that.
https://suzukipitstopplus.com/Products/1037-1999-vitara-grand-vitara-service-manual.aspx


99 to 04 ,known to work, this is Geo, but is same as GV.
http://www.fixkick.com/engine/2.5L%202004%20Tracker/fusebox1w04.JPG

note the PINK wire , BINGO all suzuki Vits.

you have no fuel pressure cranking???????
what is the problem. or doing the depressurize?
.
below is 2.5L GV, 99, no turbos. no diesels.



478d8896-9240-4a76-b517-f7cf25ee0c9e.jpg
Read full answer
Jun 26, 2014 • 1999 Suzuki Grand Vitara
0helpful
1answer

Grand vitara RF diesel oxygen sensor location
old post.
in what country.?
smog controls vary by , you guessed it, country.
2 used world wide, diesels.
2.0 L RF/RFM I4 (diesel)
2.0 L RHW/RHZ I4 (diesel)

RF.
did you look first?
at the exhaust header, for 4 pin devices, (sensor) there.
look again. its there.
are you even sure there is ONE?
or just chasing RUMORS?

ever consider buying the FSM for this car.
and now no more wild goose chases?
ask suzuki for the service man.

its really a MAZDA , i think
A direct-injection turbo version (101 bhp) with four valves per cylinder, called the DiTD was introduced in the June 1998 Mazda 626 Wagon 2.0 DiTD. Engine has SOHC valve train with rocker arms and mechanically adjusted screws (no hydraulic valve lifters), with Denso V5 rotary injection pump and Denso PCM.

if it is, then the 02 is at the header collector junction, very near.
the down pipe. or the actual exh. manifold end collector.
like most cars....
Read full answer
Jun 24, 2014 • 1999 Suzuki Grand Vitara
0helpful
1answer

Grand vitara with puegeot diesel won't start
From what you say I would have a load test done on the battery as the sudden drop in voltage when trying to start indicates a dead cell
Read full answer
Feb 24, 2014 • 2002 Suzuki Grand Vitara
1helpful
1answer

Is there a sensor that sends a signal to the glow plug relay to say that the engine is cold and trigger the relay to heat the glow plugs in a 2002 suzuki grand vitara with the 2.0 hdi rhz code engine
It will work through the temperature sending unit for the engine. You may have one or two. Some companies dedicate one temp sensor for the glow plugs and some don't.
Read full answer
Nov 24, 2013 • Suzuki Grand Vitara Cars & Trucks
3helpful
3answers

Suzuki grand vitara RHZ Diesel auto/Diagnostic tool
my 1993 very recently aguired.Grand vitara deisel. has imoberlised it's self. have had guys up with computer diognostics and found it in safe mode.found fault on turbo charger fixed it..all go, went for a short run ..great turned it off and on twice all fine.....next morning it had imoberlised itself again guys came with computer no fault found.. but it still will not start....help please........
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Jan 18, 2009 • 1999 Suzuki Grand Vitara
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