ZZP Radiator and Trans Cooler Install ( 2007 Pontiac Grand Prix GT ) 

I'm in your shoes RIGHT NOW! I have an 07 GT, gray. Battling a gunked radiator. Been really thinking about going this route. Bookmarking this video!

Thanks a million. You've helped a sheet ton of people

Thanks again for the content man great video I'm ordering parts today!

Great information to prolong these trans

Amazing installation. I think ZZP definitely needs some more R&D on those hose necks. Especially since it doesn’t fit their hoses either. Those transmission temps are impressive after your cooler added. Good vlog.

I'm sure this is a good video. Just came across it but don't have the time. I'll save it to my " favorites" list and watch it later.

I thought it was a great project until you got to the point of the hose not fitting the radiator. I've had that problem on other projects and that just pisses me off. So, in short, ZZP just lost a sale. I would have bought that radiator and trans cooler for my GTP , BUT, not now. Way to ZZP !

Be good to know how much a zzp rad drops coolant and trans temp over stock without aux cooler. Ive used the Monte Carlo police option aux cooler and factory 3 lines. Always been afraid of aux rubber cooler lines as ive seen so many come in on hook after a cooler line popped off and trans puked its guts out then pump was junk before driver realized what happened

Good job bro. I'm getting an aluminum radiator myself. This ain't a job you wanna do over. No more plastic radiators for me.

Just bought a 2004 GTP COMP G with 94,000 miles. My radiator is leaking now and I’m thinking about putting the same radiator in it as well. Doesn’t look to be too hard to do

You should do a transmission rebuild next

Do you have a video with similar radiator upgrade on the 1998? Shocks/struts upgrade on the 1998? Thanks for the lessons.

Love your videos.I have the same issue in my 05 Grand Prix 3.8L NA with 125K miles. Just got it 3 months ago. Engine temps are fine on the highway, but in traffic temperature goes up past the mid-way on my gauge and I have to turn the heat on to cool it down. Seems like the fans come on much later than they should. Very stressful. I have a few questions: My temp gauge doesnt show the actual temp numbers, how are you able to tell what the exact temperature is? Same question for the tranny temp - how are you able to see what the exact temp is? Is there a way to force the fans to come on earlier? You mentioned you had set them lower. This seems to be a common problem on these cars, is the only way to fix them to replace the radiator? Do I also have to replace the trans cooler or is that optional? What is the right thermostat temperature to use?

I did a tru cool 4k. The big boy. I mounted it up behind the nostrils like you did however mine spans across the whole width. I stupidly decided to run -6an lines and fittings the whole way from the case to cooler. Major pain I'm the rear end getting all of the correct fittings. And very costly. I've got a large freezer Ziploc bag full of incorrect -6 fittings/adapters. But, I know it will never leak 🙃. That's what I tell myself anyway. Doing only the trans cooler completely fixed my slight overheating issue. The stock radiator now has no problem keeping up even with ac on

link for transmission cooler?

Yeah city driving and highway driving gets my coolant temps to over 190 with a NA 06 Grand Prix. The trans temps can get over 200 if not up to 220 during peak summer temps. I need to find a mechanic to do this set up to my car. Any tips on hard shifts? Sometimes 2nd and 3rd shift hard.

I love ZZP but those radiator hoses were way over priced in my opinion

I have a 06 base model and have the zzp aluminum radiator is a trans cooler a benefit for me or not as im base model. Also i have a zzp aluminum radiator. When online i get 10 different torque specs from 10 ft/lb to 14 ft/lb whats a good torque you use on trans pan bolts? Also the drain plug on the trans pan leaks i ordered a better gasket but a torque spec on the drain bolt would be awesome. I also use the gm metal oem gasket.

Are you using the radiator transmission cooler with the tru cool or tru cool by itself?