Hope someone out there can tell me something about this situation - I'm
getting no help from GM. Sorry for the long post, but the details may be
Here's the story. I've got a '96 1500K, 5 speed, 4.3l V6. For a few years
now, it'll run rough at mid rpms (1500-2500), missing badly. At one point,
I'd just replace dist. cap and rotor, and that would seem to help for a
while. For the past 6 months, it's been worse, also causing rough idle. The
missing at mid rpms almost never goes away - sometimes it would before,
after the engine was warm. In the past few thousand miles, I've replaced
cap, rotor, coil, wires and plugs. Did the TSB on the coil wire. Nada.
Still misses, SES light is on and codes say "random misfires", and do not
single out any cylinders. BTW, engine purrs under heavy acceleration, never
misses. Generally also smooth at idle.
Had it in a shop - one I trust. They thought the fuel pump was bad due to
low pressure, tried a new one but still couldn't get much above 52 psi - too
low for consistent operation of the injectors. Bad pressure regulator?
Maybe. He did a lot of research online with his tech. service and found
that, per the service, GM had issued a nationwide recall in 2003 on the 4.3,
5.0 and 5.7 l engines, 1995-2002, for defects in the injector assemblies.
The symptoms described were just like I've experienced. The GM recall
number was listed as 99066F. He called one dealer (jerks) who said there is
no such recall. Another dealer said they heard of it, but said we'd have to
call GM direct and find out what they'd do for us.
I called GM and got a major run-around form the customer service rep, who
insisted there was no such recall, or "policy" as GM calls it. Then she
found one (99066G), but only for Calif. trucks. Very evasive, and tried to
deflect my questions. I had the mechanic try. He got the same run-around,
but get this: first, they tell him that there is no recall, then they say
that even if there were, it would not apply to my VIN. But, they sadi, I
should check with a GM dealer because they might be able to "help me out"
with the problem. WHAT KIND OF BS IS THIS?? I am convinced that GM is
aware of the problem, but is doing everything possible to keep a very tight
lid on it.
I am going to the one (helpful) dealer to have them check it out. In the
meantime, does anyone have any ideas as to 1- know if this recall does
exist, and 2- getting GM to react in a responsible, customer-friendly way,
if it does? I'm not anxious to spend $800-$1000 for the fix if GM should be
picking up the tab.
Thanks a lot
I just searched the GM site (I'm a GM tech and have access
to the online site) and the only one is the 99066G special
policy. I've heard about this one, and it only applies to
GM trucks registered in California. The reason for this
is the laws in California. Apparently, they have forced GM
to offer the extended warranty in that state. So if your
truck is not registered in California, you are out of luck.
There is no mention of VIN breakpoints in the special
policy that I can see.
What she may have been trying to tell you is that if you had
a good relationship with a dealership, they might be able to
work out some sort of "goodwill" policy with you. We do it
all the time at our dealership. It can range from "you don't pay
a cent" to "you pay 1/3, GM pays 1/3, and the dealer pays
1/3". Of course, it usually hinges on how good of a relationship
you have with the dealer. Which in your case, might be iffy, unless
you have more info available as to how much work you get done
at the dealership.
> I am going to the one (helpful) dealer to have them check it out. In
I suspect you will be paying for most of the tab, if not all. Maybe
you will get lucky. I'll include the body of the special policy below
so that you can read through it and at least be familiar with it. By the
way, the dealership that told you that there is "no such policy" as
the 99066F was correct. What GM does is continually update
the policies. As they do, each succesive update is "lettered", so
the first update could have been 99066A and then have gone
on up to "G". The important thing is to look for the 99066 policy,
no matter what letter comes after it.
Special Policy Adjustment-Sequential Central Port Fuel Injection (SCPI)
Failures in California Only (YF5 Emission Equipped) #99066G - (Nov 5, 2003)
99066G -- Special Policy Adjustment -- Sequential Central Port Fuel
Injection (SCPI) Failures in California Only (YF5 Emission Equipped)
Certain 1996, 1997, 1998, 1999, 2000, 2001, 2002 S/T, M/L, C/K, G, P, W4/NPR
Trucks and 2003 NPR Trucks
Equipped with 4.3L (RPO L35-VIN Code W or RPO LF6-VIN Code X), 5.0L (RPO
L30-VIN Code M) or 5.7L (RPO L31-VIN Code R) Engine and California Emission
Equipped (RPO YF5)
This bulletin is being revised to emphasize to Dealers the important of
replacing the engine SCPI fuel assembly with the new MFI fuel assembly if
the vehicle has already received an injector cleaning. Please discard
Special Policy Bulletin Number 99066F, dated March, 2003.
Some owners of 1996, 1997, 1998, 1999, 2000, 2001 and 2002 model year S/T,
M/L, C/K, G, P and W4/NPR trucks and 2003 NPR trucks that are registered in
California, equipped with 4.3L (RPO L35 and VIN Code W or RPO LF6 and VIN
Code X), 5.0L (RPO L30 and VIN Code M) or 5.7L (RPO L31 and VIN Code R)
engine, and California emissions (RPO YF5), may experience a Service Engine
Soon light, misfire, rough idle or hard start due to a deposit build up on
the Sequential Central Port Injector (SCPI) poppet valve(s). The deposit
build up may cause injector poppets to stick closed. Fuels used in
California have been found to interact with the SCPI system to cause the
Special Policy Adjustment
This special policy covers the SCPI failure condition described above for a
period of ten (10) years or 200,000 miles, whichever occurs first, from the
date the vehicle was originally placed in service, regardless of ownership.
The repairs will be made at no charge to the owner. This special policy
applies ONLY to repairs requiring SCPI system servicing and/or injector
cleaning and/or MFI assembly replacement of the SCPI system. The customer
should not be charged for performing a system check when it is determined
that the SCPI system is not the cause of a customer complaint (labor
operation T5532 is provided to submit claims for such system checks). Any
additional necessary diagnosis and repairs that are not related to the SCPI
condition are NOT covered by this special policy. The customer should be
informed that any further service that is not covered by new vehicle
warranty will not be covered by this policy.
Involved are certain 1996, 1997, 1998, 1999, 2000, 2001, 2002 S/T, M/L, C/K,
G, P, W4/NPR and 2003 NPR model vehicles registered in California, equipped
with 4.3L engine (RPO L35-VIN Code W or RPO LF6-VIN Code X), 5.0L engine
(RPO L30-VIN Code M) or 5.7L engine (RPO L31-VIN Code R) and California
emissions (RPO YF5). This Special Policy covers all vehicles within these
model years, with these engine and emission RPOs.
Use strategy-based diagnoses listed in the front of the Driveability and
Emissions section of the Service Manual. If the SCPI system is operating
properly, inform the customer that the vehicle does not have the condition
listed in the owner letter. If poor driveability conditions persist, inform
the customer that any further diagnosis and repairs will be at their expense
if the vehicle is outside the parameters of the New Vehicle Warranty.
SCPI Injector Cleaning Procedure
If diagnosis leads to sticking poppet nozzles, first check GMVIS to
determine if the vehicle had a previous claim for injector cleaning under
labor claims J5645, T5534 or T5540. If any of these three repair claims are
listed, do not clean the injectors, but rather replace the engine SCPI fuel
assembly with the MFI fuel assembly. If none of these three repair claims is
listed, use the service procedure from Service Bulletin 00-06-04-003B to
clean the SCPI poppet nozzles. Please note that the service bulletin term
for SCPI is Central Sequential Fuel Injection (CSFI), but is referring to
the same fuel system assembly.
SCPI Fuel Tank Fill Pipe Assembly for 1997-99 M/L Van and 1999-some 2000 C/K
Truck; with 4.3L, 5.0L, 5.7L engines and built prior to listed
VIN/Production dates on Service Bulletin 00-06-04-018
If diagnosis leads to sticking poppet nozzles on these models, use the
service procedure from Service Bulletin 00-06-04-018 to replace the fuel
tank fill pipe assembly, if this procedure has not been performed
previously. Previous service procedure can be verified by checking GMVIS for
Labor Operation L1065 on M/L trucks with replacement part number 15050573;
or Labor Operation L1065 on C/K trucks with replacement part numbers
15747585 or 15747588.
If, AFTER cleaning the SCPI poppet nozzles, the normal service manual
diagnosis still indicates that the SCPI is the cause of the customer
complaint, or if the injectors have previously been cleaned and the vehicle
has again experienced sticking poppet nozzles, refer to Service Bulletin
00-06-04-003B and replace the SCPI fuel assembly with the MFI fuel assembly.
Please note that the service bulletin term for SCPI is Central Sequential
Fuel Injection (CSFI), but is referring to the same fuel system assembly.
Customer requests for reimbursement are for any previously paid repairs to,
or replacement of, the Sequential Central Port Fuel Injection (SCPI) system.
Repairs must have occurred within 10 years of the date the vehicle was
originally placed in service, or 200,000 miles, whichever occurs first. The
requests are to be submitted within two (2) years of the date on which the
repair was paid or within two (2) years of the date of this Special Policy
Bulletin, whichever is greater.
When a customer requests reimbursement, they must provide the following:
a.. Proof of ownership at the time of the repair
b.. Original paid receipt confirming the amount of the unreimbursed repair
expense(s) (including Service Contract deductible), a description of the
repair, the date repaired, and the person or entity performing the repair
Customers from the State of California must submit requests for
reimbursement directly to (divisions) per instructions in the owner letter.
If the work was done by someone other than a GM dealership, the amount of
reimbursement will generally be limited to the amount that the repair would
have cost GM to have it completed by a GM dealership.
Yesterday, my 04 CPI T15 Jimmy stalled three times, each time when I
stopped for a light. It seemed to run fine other than that. The
first stall was difficult to restart, and required full throttle, so I
suspect it was flooded.
Any suggestion where to look first? I had no check engine light.
Nothing on the CPI, nor the EGR, has ever been replaced.
It starts and runs fine, cold.
If you are outside of California the dealer would probably not know of it.
I believe the part numbers are listed on the TSB to switch to the new
injector setup. You can order it online for just over $200 plus S&H. The
injector assembly includes the fuel pressure regulator
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.