Search:

got it , and thanks to hptuners for the new update , it shows AC type under system , change it to serial cycling and now i have high speed fan for A/c , still small problem thoo , i need external...

hello guys ,,

i need a file of any GM 2004 or 2005 4.3L with stock E fans to write it on my safari GMC 2004 , the fans working great for the ECT but for A/C there is no high speed yet ,
...

hi guys i have 2004 GMC Safari with 4.3L pcm os 12587603 i want to re flash my pcm with 2006 4.3L Chevy silvarado OS 12587811 i compared the file not much differences some adjustment need tho , can...

common man do leave now :)

hi shrek , thank for the pining , now i can see A/C pressure on hp tuners scanner ,do you know where C2 18 DK GRN 59 A/C Compressor Clutch Supply Voltag must be connected and pined this in case i...

i will give i try tommorrow man , and the sensor installed (wilded on the high side ) i,m using 3 wire style sensor came on 2004 tahao , i can run it with pcmforless harness like before and have...

i added the sensor connector C2 pin 14 A/C Refrigerant Pressure Sensor Signal and still no result , sorry shrek your idea is not good

okay guys i need help , please post any info ,

i bought gm 15912597 harness and installed the Fans and the harness and every thing looks okay my os is 12587603

as i said the fans installed...

i can see your point man , just came to my mind that savana 04 comes with A/c pressure sensor because the have electric fan clutch ,and thats why savana guy didnt have any issue with his setup ...

http://www.gmtruckclub.com/forum/showthread.php/87079-My-Project!-E-Fans-on-my-6-0-Savana-Cargo#axzz2Bl62vCEj

this where i get the inspiration o do my efans :(

thank you shrek , on same car i used pcmforless harness and it was working fine wiht both A/c and ECT but high speed only , and this harness used on 05 and 06 silvarado,s , 2007 up pcm doesnt have ...

hi guys
i have 2004 GMC safari i installed E-fans using the 2004 savana harness GM 15912597 all pining and connector are okay ,,the fans are running low speed and high speed for ECT , but when A/C...

hi there . did you fix he idle issue or you installed the factory TB ?

top of theard

hi guys ,
i,m tuning 4.3L engine on gmc 2004 safari van , can anyone help what is the max timing allowed on that engine , i need to gain more torque and any help with the tune will be appreciated

is this to fix hi and low speed , coz the fans works with AC good

hi guys , everything is done
the harness pining and fans installed . i need help with tune , and looks i,m not getting low and high speed only hi , is this related to harness or the fan setting???\...

this is the harness 15912597
can anyone tell me please where the pcm 2 wires ??

thank you very much , but i still need the GM harness part number

i found GM 15912597 , the guy said its for savana GMC , but when i search the internet it says headlights harness ???

top of thread

hi guys i have project in mind , i have 2004 GMC safari that i just bought , i need to put efans instead of clutch fan , i could use any variable control in the market but i thought i can connect my...

well i found one the vin code M which is LH6 allumiunm heads and block but with heads number 243 model 2008 , this one willbe plug and play , i only have to swap oil pan , what do you thiink sherk?

this one i saw has AFM i can tell from the vally cover , its the same vally cover of my engine, also so in webs that LH6 came on 2007-2009 sierra 1500 , and silvarado 2007 , but it has iron block...

i live far from usa , if i want to order thats mean i have to wait , if i buy used 2008 silverado 5.3L iron block it will work fine??
please guys im hanging in here there is not much LH6 engines in...

what about the hardware , block , heads , DOD system , cam shaft, is the difrrence too?
and do you think this is the cause why engine wont start up