Sure Cure GM 6.5 Lift Pump Solution Kit


Starts but immediately dies . . .  won't accelerate strongly . . . fish-bites (hiccups and stumbles) when driving like it wants to die - and stumbles but keeps running . . .  hard shifts gears . . . - driving and it cuts out but will start again . . . . hard to start in the morning - skip starts requiring a lot of cranking time . . .  idling and just cuts off..  Chances are greater than not it is the lift pump and it does not matter if you bought it literally YESTERDAY.   Custom Made Item Not Refunable or Returnable

No . . .  there is no picture of the item . . .  it is described below.  See our terms of service.

The lift pump on the 6.5 GM Diesel and any other vehicle that uses this kind of lift pump has a defective designed pump on it.  It is NOT an electric fuel pump - it is an electrically energized mechanical fuel pump driven by SPRING pressure.  Yes SPRING pressure and it is not even an electric fuel pump - meaning it does not pump fuel by electric means or a motor.

On the GM 6.5 - weak fuel pressure is literally a catastrophe waiting to happen.  Low fuel pressure means the Injection pump is not full of fuel under pressure lubricating the internals of the IP properly and recirculating the fuel to the tank to help cool the IP and the PMD - if it still attached to it - and it is causing an over-working of the fuel solenoid as a "throttle mechanism", which in turn strains the PMD that powers the fuel solenoid, and the first to go will be the PMD, and then you are dead in the water or changing - or swapping out - a PMD if it is remote mounted.  But what you probably do not really notice - is how sluggish the engine responds and it seems to have no power.  But . . .  hey . . .  it is a diesel and is supposed to run that way you think!!!  Wrong . . .  weak fuel pressure and low lubricity fuel is slowly killing your IP!!!

This kit includes TWO Rotary Vane wet motor pumps, (one for a spare) and the adapters required to install this on an unmodified GM 6.5 Diesel engine equipped vehicle.  It creates a "functionally identical" lift pump like GM intended and spec'ed for the engine - but failed at because they used a solenoid type lift pump.  For why GM failed see  Ford and Dodge "knew better" and always used the Rotary Vane positive electric motor driven type fuel pump. 

Most people do not know it - but the GM lift pump is THE SINGLE MOST AFFECTING ISSUE of the GM 6.5 diesel.  GM never figured it out and would not listen to Stanadyne who tried to tell them the DS-4 Injection MUST HAVE 5 PSI or BETTER (up to 14 psi) at it at ALL TIMES whether at idle or wide open throttle for the injection pump system and engine to operate properly.  There is no fudge room on this - it MUST HAVE 5 PSI.  They were trying to tell them to STOP using that solenoid lift pump.  Ford and Dodge have used this kind of pump for years

For those who do not believe - they have never seen the DS-4 Injection Pump being run on a test stand being run when the pressure drops beleow that 5 PSI manadatory threshold..  All kinds of "wonky" things begin to happen like timing changing dramatically etc   Addtionally - the major issue eveyone has "band-aided" with a re-loacation heat sink - is the PMD issue where they think re-locating the PMD OFF the side to fhe DS-4 is a benefit - when it is NOT.  The DS-4 has a big "POOL" of fuel right under the PMD which is supposed to be constantly recircluating back to  the tank to act as a cooling pond-pool as a radiator for heat coming off the PMD and it works very well - IF AND ONLY IF - the DS-4 is kept full of fuel at 5 PSI or better.  The return valve on the top of the DS-4 opens at about 6 PSI to recirculate fuel and draw heat away.  See the housing pic in the listing - and how big a pool of fuel would be under the PMD. (which mounts on the flat pad on the left)

None of this has EVER worked right with the solenoid pumps - because first - they cannot really hold pressure ABOVE 5 psi - one the get a "little" aged - or the spring gets immediately weak - and they cannot move enough fuel VOLUME and at the proper PRESSURE to effective do the cooling job.  Hence the GM 6.5 has a been a real "witchy motor". 

Quite a few things can affect an aggressive suction like this pump will produce.  The biggest is the fuel tank sock as pictured.  It has a trap door that will open if the fuel waxes - or the sock itself gets clogged with old algae or other debris - and this is not good if it enters this kind of pump as it will restrict the motor or even stall the motor - which uses the fuel to cool itself also..  For this reason the kit comes with a pre-pump filter.

This installs easily in about 10 minutes if you are a good mechanical person or about 30minutes for the average person who has the right tools - and if it takes you more than an hour - you are drinking too many beers on the job.

Using the adapters it bolts in as a resplacement - and the most that might need to be done is to drill new holes to clamp the pump slightly ahead of where the old one was mounted.  All is included except two feet of common 3/8" fuel line hose.  The second pump is a spare you should keep in your vehicle and the tools if you ever need it on the road  for a quick swap.

The kit  has a small liquid filled gauge that mounts above the fuel pump so you can see how much presure the pump is producing pre-filter.  We recommend using instead a more accurate cab mount electric gauge found here => and here => (can also be used for pressure gauge)

Usually as all GM 6.5 drivers know - you can hear the pump running - but with this kit you can hear - if it is running "weak"; because you will not hear it running "strong" and unlike the solenid pump - it sounds the same basically all the time - and may be pumping nothing really.

This item has been designed and reviewed in accordance California Air Resources Board (CARB) regualtions and restrictions and because it is a FULL KIT that is a "functionally indentical" replacment part system, it is an approved replacement part.for the GM 6.5 Diesel system for all engines from 1993 all the way to 2006.  (Yes, they were made up to 2006 titled in some Motorhome or specialty chassis vehicles like step vans etc - that sat in inventory sold and tilted into the 2006 model year by remanufacture vendors)

We guarantee this kit will end your 6.5 odd issues given everything else is proper and you are running good fuel.

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The main lift pump actually has a lifetime warranty - (the spare unit does not) but the manufacturer may not honor it because they do not specify this pump is to fit a GM 6.5 engine which is a term of their warranty   The kicker is the pump is actually manufactured and sold as a "universal pump" and it has NO APPLCATIONS listed at all.  Often you can send an email with the words "warranty" and provide the specifications and they may warranty it - if it is completely dead - or you can prove it will not produce pressure.  We will send proof of new purchase status as an original invoice needed for  the warranty use if needed later. 

This kit produces a functionally identical part as identified at 13 CCR § 1900(20).  [California Code of Regulations] and is thus exempt under any California Air Resources Board (CARB) regulation or jurisdiction. 

When installed as instructed, this kit produces a "functionally identical" part to in minimum - but not limited to -  the following pumps:

ACDELCO EP158 {#25115224} GM Original Equipment, DELPHI FD0009, CARTER P74001, AIRTEX E3158, AUTOBEST F2169, PRECISE 402P3158, SPECTRA SP1159 {#25115224, EP7288}, AND THE ACDELCO EP309 {#25117340} GM Original Equipment, DELPHI FD0031, DELPHI HFP921, AIRTEX E3309, CARTER P74143, PRECISE 402P3309, AUTOBEST F2310, SPECTRA SP1127, AND THE ACDELCO EP1000 {#15754298} GM Original Equipment, DELPHI HFP922, CARTER P74222, AIRTEX E3540, AUTOBEST F2551, TYC 152045, PRECISE 402P3540, AND THE SPECTRA SP1133 and as all "replacement parts" being sold in the marketplace for the 1993 to 2006 GM 6.5 L Diesel Engine this kit is "functionally identical" it can be sold without any CARB Executive Order of Exemption;

Unlike other pumps on the market - this one will hold pressure against the IP when you shut it off for quicker restarts

Kit Contains:

New Fuel line adapters and fittings and clamps needed and mounting plate

TWO new Rotary Vane wet motor pumps (one is a spare) 6-9 PSI, 72 GPH free flow, 12 volt and the other is a spare that pushes 4 to 6 psi for emergency use only until you can get a new replacement

A pre-pump fuel filter - with fuel line fittings to connect to the OEM lines.

Full instructions and illustrations are included.

You will need to purchase three feet of 3/8" common fuel line hose

This item is NOT RETURNABLE, and no warranty applies beyond any required by law IF and ONLY IF it does not operate on arrival.  Any claim must be made within 72 hours of delivery.

If you buy with Bitcoin shipping is FREE - that is we will refund the shipping and ship by Priority Mail to Domestic US, and for overseas buyers - we will deduct the amount paid from Priority Mail International of the Domestic US shipping cost.

If you need info on how to buy with Bitcoin see =>


Weight: 10.75 lb
Price: $399.00
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SKU: sure_cure_6_5_lift pump kit
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