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P2636 fuel transfer pump flow insufficient. keeps throwing that code and the relay and pump are working fine.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

unsivilaudio
  • 25 Answers

SOURCE: Fuel pump will not run, 96 Neon 2.0 SOHC

Personally I wouldnt bother tracing the wire as it is probably not worth your time, and just run a constant 12v from the battery to the relay on like 10ga wire. There is probably a short somewhere in the system which can be a real headache to find.

Also it may sound dumb, but check your fuses, and the fusible links under the hood. Chances are that they are all fine though, especially if you have dash lights.

Posted on Dec 30, 2008

  • 3 Answers

SOURCE: Have a 1992 chevy 1500

try the ecm fuse

Posted on Mar 13, 2009

  • 14036 Answers

SOURCE: fuel pump relay keeps blowing on my 1996 Cadillac STS, why?

replace fuel pump wires.they could be shorting out pump relay.

Posted on May 27, 2009

  • 7353 Answers

SOURCE: OBD code P04001 Insufficient flow, I changed the

did you clean the EGR passages? take the valve back off. one hole will have exhaust, the other should have strong vacuum.ususally the passage gets plugged with carbon, from the valve to where it goes into the intake manifold. you may take a wire and carb cleaner to clean the passage.

Posted on Oct 20, 2009

emissionwiz
  • 75108 Answers

SOURCE: 2008 Ford F450 fuel pump relay fuse keeps blowing.

the fuel pump and radio are not on the same circuit, most liokely the fuel pump is shorted, that is the most common cause, get under the truck and disconnect the fuel pump connector at the tank, if the fuse doesn't blow then u need a new pump.

Posted on Dec 05, 2009

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HAVEING A VERY HIGH IDLE NOT SHIFTING EVEN MANUELLY ? CONVERTER LOCK UP MOOD ?JUMPER WIRE TO GET CODE LIGHT CONTINUELESSLY BLINKS .ENGINE IS COOLED THE FUEL PUMP RELAY KEEPS CLICKING TILL START


make/model information might assist in getting a response

throwing parts at a problem is a good way to spend money but not to fix problems

Jan 19, 2016 | Cars & Trucks

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When my fuel get near 1/4 tank my jeep cuts off continually while driving. It starts fine and runs fine in park but wont drive for long. Especially on highways. What could be the problem?


possible fuel pump or pump relay is over heating --the fuel pump uses the gas to keep cool when at lower levels in tank it warms up pulls higher amps and shuts off --pump on its way out not putting out enough pressure -same with relay if pump starts pulling higher amps heats up relay and it opens when cooled down work normal ----other is vapor lock but ur evap usually throws a check engine light but could be a problem

Aug 05, 2015 | 2003 Chevrolet TrailBlazer

2 Answers

I have had a few expert tell me to check fuse ands relays. because my car won't stay running.


Hi Arnulfo:
How long does it run before it stops?
Sounds to me like a possible fuel delivery problem.
Is there a fuel filter and if so, have you changed it?

May 15, 2015 | Cars & Trucks

1 Answer

Fuel pump relay


While you could have a fuel pressure (pump/pump relay) problem. I would suggest that you have a fuel flow problem. Check your accelerator pump, float and float needle (think: carb kit), and fuel filter. If an insufficient amount of fuel is reaching the float chamber just before you shut off the engine, that small amount could evaporate out from engine heat, leaving nothing in the float chamber for the next engine start.

Oct 04, 2013 | 1996 GMC Sonoma

1 Answer

1994 Chevrolet Lumina 3.1 will not start - after starting with ether runs fine.... 1994 Lumina 3.1 will not start - cranks but won't start. While cranking shoot ether into intake - starts...


Had friend put OBD diagnostics to it and error code indicated fuel pump ????? No code indicates replacing any part . Indicates testing ! pressure and flow testing , voltage drop testing the electrical circuit etc... There is a check valve in the fuel pump assembly that is suppose to keep pressure in the fuel lines an fuel rail . When the check valve goes bad allows fuel to drain back into the tank. Try turn the key on an off a few times to build up pressure . The PCM energizes the fuel pump relay for two seconds at key on .

Jun 13, 2017 | 1994 Chevrolet Lumina

1 Answer

HELLO I HAVE THIS CODES PCU P1693,ECU P1689.P0126. P230


CODE PO126 - INSUFFICIENT COOLANT TEMPERATURE FOR STABLE OPERATION. CHECK FOR LOW COOLANT LEVEL.FAULTY THERMOSTAT STUCK OPEN.OR MISSING THERMOSTAT.FAUTY COOLANT TEMPERATURE SENSOR. CODE PO230 - FUEL PUMP PRIMARY CIRCUIT MALFUNCTION.POSSIBLE CAUSE FAULTY FUEL PUMP RELAY.OR PCM CIRCUIT FAILURE TO FUEL PUMP RELAY. DID NOT SEE CODES P1693 AND P1689.

Sep 28, 2010 | 2005 Dodge Ram

1 Answer

1996 ford windstar 3.8 codes say that cylinders 4 and 6 are misfiring,system too lean bank 1,egr flow insufficient. whats up?


Cylinder misfiring hapens when ignition coil is bad and bad spark plugs.
System to lean is usualy when fuel pump lose pressure or you have blown gasket on intake manifold. Check fuel pressure first.
When EGR flow is insufficient there is EGR valve, sensor and solenoid, could go bad., so you have multiple codes P0171, P0304,P0306, P0401

Feb 21, 2010 | 1996 Ford Windstar

2 Answers

Engine will not start.turns over fine.ran fine


run scanner for trouble codes, some auto parts stores   will do this for free,check fuses, check for fuel at fuel rail, if not check fuel pump relay, you should here it click when key is first turned on, if not try to bend tabs slightly to make good contact, if no click, replace relay if so turn key off then on listen in tank with cap off for whirling sound if tank, if not could be fuel pump, sorry 

Oct 10, 2009 | 1998 Ford Explorer

2 Answers

When the car runs a little hot, the fuel injection


I just had this same problem in a 91 Camaro.It's definately the fuel pump.

Sep 15, 2009 | 1989 Pontiac Firebird

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