Heater Core Replacement

UglyFast88 · 05-22-2002, 11:32 AM

Hi guys, my heater core just took a crap.

I've got everything going for me- NO A/C!

I know it's easier, but what's the quickest way to fix it?

Help!

Also, how hard it it to just bypass it?

USMC302 · 05-22-2002, 11:53 AM

mine was pretty straight foward, i pulled my glove box out then unbolted the dash brace in order for it to pull out about 3 or 4 inches. Unbolted the fan assembly took it out of the way, dropped the heater core housing down as far as it would go and unbolted the heaer core cover and slid it out, remember you have to unbolt a few bolts under the hood on the firewall that are connected to the housing. Good luck, it wasn't fun, but I got it done for free!

UglyFast88 · 05-22-2002, 12:00 PM

Thanks for your reply- I'll probably tackle it this weekend. HOWEVER- I may have to move the car before replacing it. How do I bypass it- do I tie together the two lines inside the engine compartment?

Who's bypassed? What do I need?

Thanx again!
Joe

UglyFast88 · 05-22-2002, 12:02 PM

USMC302- sorry, but this is completely unrelated, but I saw it in your sig.

Will pretty much any Ford seats fit into my car? Mine are a little ratty, and nasty being old LX seats. I'd like to replace them soon. Do you happen to know what'll bolt in since you replaced yours and may have looked around?

Thanx!

fiveohpatrol · 05-22-2002, 12:04 PM

all you need to do to bypass it is tie the two lines that go to the heater core through the firewall together with a fitting and some hose clamps (just use the clamps that are already on there)

USMC302 · 05-22-2002, 12:05 PM

Sure, the hoses coming off of the water lines can be connected bypassing the heater core, a lot of people run that anyway that have droped there fan assembly completely for weight. You can get a short hose and run it from one water pipe to the other, ensuring there are no kinqs in the hose so the water will still flow smooth. Good luck, all you will need are you common tools and common sense!

UglyFast88 · 05-22-2002, 01:01 PM

Okay, common tools, ok... Common Sense?

Oh CRAP.

J/K

Thanx!

srv1 · 05-22-2002, 09:58 PM

hey Uglyfast, did you say you have no A/C? i have never seen a 87-93 5.0 that didnt come with A/C. got any pics? curious.

UglyFast88 · 05-24-2002, 08:34 AM

Sure-

I'll take some this weekend...

USMC302 · 05-27-2002, 10:45 AM

Sorry about taking so long to post, I went out of town, anyway, I know that most mustang seats are swapable throughout all years, It took a little modification for the new seats in my 88, but nothin to hard at all, the rails on the seat are uneven and I had to add lots of washers and long bolts to even it up but it worked and they look awesome.I actually saw an article in either 5.0 or MM&FF about doing it and knew prior it could be done. Good luck though!

84LX89GT · 05-27-2002, 02:28 PM

I know that '87-'88 GT's could come with No A/C, manual crank windows and manual door locks because i've seen a few personally. Pretty interesting. Although it sucks that they got rid of that option. I saw a "base"model '88 GT not too long ago that was weird because the door panels are just slightly different, so it threw me off. i believe that '87 and '88 were the last years where you could order T-tops as well and i believe they were phased out early in '89 model year as well.
Just some useless info.

Another thing about the heater core:
My heater core, took a dump as well and unfortunately,
my chilton's book explains replacing a heater core in a non-A/C vehicle to be harder because in A/C vehicle it says to remove the evaporator plenum to gain access to be able to remove the heater core, whereas i don't know how you'd do it in a non-A/C car. Although Chilton's may be wrong.
Good luck, the way i look at it, one of us is going to be cussing when replacing their core....and the other will be cussing and throwing things

05-22-2002, 11:32 AM	#1
UglyFast88 Registered Member Join Date: Apr 2002 Location: Fordland Posts: 117	Heater Core Replacement Hi guys, my heater core just took a crap. I've got everything going for me- NO A/C! I know it's easier, but what's the quickest way to fix it? Help! Also, how hard it it to just bypass it? __________________ '88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph Last edited by UglyFast88; 05-22-2002 at 11:42 AM..

05-22-2002, 11:53 AM	#2
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	mine was pretty straight foward, i pulled my glove box out then unbolted the dash brace in order for it to pull out about 3 or 4 inches. Unbolted the fan assembly took it out of the way, dropped the heater core housing down as far as it would go and unbolted the heaer core cover and slid it out, remember you have to unbolt a few bolts under the hood on the firewall that are connected to the housing. Good luck, it wasn't fun, but I got it done for free! __________________

05-22-2002, 12:00 PM	#3
UglyFast88 Registered Member Join Date: Apr 2002 Location: Fordland Posts: 117	Thanks for your reply- I'll probably tackle it this weekend. HOWEVER- I may have to move the car before replacing it. How do I bypass it- do I tie together the two lines inside the engine compartment? Who's bypassed? What do I need? Thanx again! Joe __________________ '88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph

05-22-2002, 12:02 PM	#4
UglyFast88 Registered Member Join Date: Apr 2002 Location: Fordland Posts: 117	USMC302- sorry, but this is completely unrelated, but I saw it in your sig. Will pretty much any Ford seats fit into my car? Mine are a little ratty, and nasty being old LX seats. I'd like to replace them soon. Do you happen to know what'll bolt in since you replaced yours and may have looked around? Thanx! __________________ '88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph

05-22-2002, 12:04 PM	#5
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	all you need to do to bypass it is tie the two lines that go to the heater core through the firewall together with a fitting and some hose clamps (just use the clamps that are already on there) __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

05-22-2002, 12:05 PM	#6
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Sure, the hoses coming off of the water lines can be connected bypassing the heater core, a lot of people run that anyway that have droped there fan assembly completely for weight. You can get a short hose and run it from one water pipe to the other, ensuring there are no kinqs in the hose so the water will still flow smooth. Good luck, all you will need are you common tools and common sense! __________________

05-22-2002, 01:01 PM	#7
UglyFast88 Registered Member Join Date: Apr 2002 Location: Fordland Posts: 117	Okay, common tools, ok... Common Sense? Oh CRAP. J/K Thanx! __________________ '88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph

05-22-2002, 09:58 PM	#8
srv1 Get down..... Join Date: Apr 2001 Location: Room 103 Posts: 2,095	hey Uglyfast, did you say you have no A/C? i have never seen a 87-93 5.0 that didnt come with A/C. got any pics? curious. __________________ Cobra brakes are on! Finally..... ------------------------------------------------

05-24-2002, 08:34 AM	#9
UglyFast88 Registered Member Join Date: Apr 2002 Location: Fordland Posts: 117	Sure- I'll take some this weekend... __________________ '88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph

05-27-2002, 10:45 AM	#10
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Sorry about taking so long to post, I went out of town, anyway, I know that most mustang seats are swapable throughout all years, It took a little modification for the new seats in my 88, but nothin to hard at all, the rails on the seat are uneven and I had to add lots of washers and long bolts to even it up but it worked and they look awesome.I actually saw an article in either 5.0 or MM&FF about doing it and knew prior it could be done. Good luck though! __________________

05-27-2002, 02:28 PM	#11
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	I know that '87-'88 GT's could come with No A/C, manual crank windows and manual door locks because i've seen a few personally. Pretty interesting. Although it sucks that they got rid of that option. I saw a "base"model '88 GT not too long ago that was weird because the door panels are just slightly different, so it threw me off. i believe that '87 and '88 were the last years where you could order T-tops as well and i believe they were phased out early in '89 model year as well. Just some useless info. Another thing about the heater core: My heater core, took a dump as well and unfortunately, my chilton's book explains replacing a heater core in a non-A/C vehicle to be harder because in A/C vehicle it says to remove the evaporator plenum to gain access to be able to remove the heater core, whereas i don't know how you'd do it in a non-A/C car. Although Chilton's may be wrong. Good luck, the way i look at it, one of us is going to be cussing when replacing their core....and the other will be cussing and throwing things __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Heater Core leaking already!	429mustang	Windsor Power	2	07-30-2004 09:05 AM
heater core question	82 GT	Windsor Power	9	10-17-2002 05:38 PM
I'm replacing heater core, what else since it's apart	macker123	Windsor Power	3	09-05-2002 12:21 PM
heater core replacement...	about-2-give-up	Windsor Power	2	09-29-2001 07:06 AM
Heater Core Removal	65mustang-man	Classic Mustangs	2	09-17-2000 01:32 AM