joeb Posted January 15, 2009 Report Share Posted January 15, 2009 i have a 96 sts with the sst fuel rail. i ordered a new fpr from rockauto. they have ac-delco and aftermarket and plastic and sst fuel rails so there are a number of parts available. why does the aftermarket (tru-tech?) cost 50% more than ac-delco? i called customer service there and the guy said he did not know. order what i want. any votes for ac-delco or tru-tech? my fpr has the large u-clip that is shown on the tru-tech model. i hope the ac-delco i ordered is the same physically. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted January 15, 2009 Report Share Posted January 15, 2009 You can't go wrong with the OEM part. It's a vacuum-modulated pressure release valve that maintains a constant pressure in the fuel rail relative to intake manifold vacuum by releasing excess pressure into the fuel return line. As such it is a mechanical part with a vacuum diaphragm that moves constantly and these will wear out eventually; it's a throw-away part. The OEM part lasts about 7 years or over 100,000 miles in my experience, which is excellent for a part like that. I don't know what more you would get with a part that costs 50% more. If RockAuto lists an FPR for your make, model, year and trim, you can be sure that it will fit. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Dave in Texas Posted January 16, 2009 Report Share Posted January 16, 2009 Tru-Tech is the second line of Standard products. Standard is a very good line of parts! Tru-Tech is an overseas supplier. GM Reman 4.1 engine Dec '08 Link to comment Share on other sites More sharing options...
PAUL T Posted January 16, 2009 Report Share Posted January 16, 2009 Go OEM, I have have aftermarket FPR's not fit. Link to comment Share on other sites More sharing options...
joeb Posted January 19, 2009 Author Report Share Posted January 19, 2009 ordered it thursday and got it sat. i did not go anywhere this weekend. its not cold starts but hot starts where it will not fire right off. i had the same issue on my kids grand prix. i put in a new fpr in sept and it took care of the problem. i should know in the next day or 2 if it is better. Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 19, 2009 Report Share Posted January 19, 2009 That is histerical, Standard USED to be their bottom level, now that have a level below STANDARD?, I used to use their premium BLUE STREAK line.. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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