Yeah- Hayden 679 cooler came with barbed fittings- they advertised an installation adapter for our trans, but that only works for one of the sides (as it turns out 8 qts later of fluid). Hoping to bypass the radiator/transmission heater altogether as I love in Florida.

Hello-
My 2003 SE has a transmission cooler mounted! Need your help with the proper size of the lines in our 4t65e.
How did you guys bypass the radiator and connect it to the transmission? My problem is finding ANY fitting that will work, or even an adapter that will work with tye existing OEM ...

I have a 03 SE. When the car heats up to about 195-200 the transmission shifts hard. Car never overheats, however no fans unless air conditioning is on. I have replaced relays for fans along with temp sensor, and no difference. I can cruise for hours as long as there is air flowing thru the radiator ...

So how did you correct the fuel pressure, to what spec, and have your mpg's returned to higher efficiency? I may baby my '03SE to 24 mpg on a great day cruising on the hwy. Thanks!

I did not even know having a loose fuse box was possible! After reading this post, I tightened up the three bolts in the fuse box after making certain all four clips on the sides were engages, and VOILA! Car ceased to have misfiring, and is again running like a top. Thank You for documenting this in ...

You mean to tell me that your fuse box was loose? I just had the same symptoms- p0201 p0301 and car ran like *shoot* after removing a relay from it...

Hello-

I have a 2003 3.8l Bonneville that stays cool because I kive in 90+ degree Florida! If I turn off the air conditioning the fans do not run... no overheating, but temp goes a tick over 200 and holds steady.
I looked around a little bit for some ideas, but do not know how to diagnose.
No ...

Hello-
I have an 03 SE.
I can hear the compressor running a fair bit... how would you suggest troubleshooting where the break is- be it in the line and/or strut?
Any ways to save time and headache diagnosing/locating are greatly appreciated.
Thanks!

I can hear the compressor running a fair bit... how would you suggest troubleshooting where the break is- be it in the line and/or strut?

Hello-
Just got a 2003 SE with 94k on it... has anyone ran the e3 spark plug e3.44? What wires work best