How To Change Heater Core In 1988 Chevy Truck

Username	Mail service: How to supercede heater core (Topic#197968)
Moparman Very Senior Fellow member Posts: 1319 Reg: 06-27-02 User Info Send Individual Topic View Profile	09-03-08 07:00 AM - Postal service#1513943 Well, I've got a coolant smell in the cab, and the defroster simply makes it fog up so badly I can't see out the window. How exercise I access the heater core to put in a new 1? Electronic mail Report

The_Hunter Correspondent Posts: 986 Loc: Manitoba, Canada Reg: 02-xiv-05 User Info Send Private Topic View Contour	09-03-08 08:53 AM - Post#1514009 In response to Moparman You need to remove the within identify of the heater. The blots for it are outside under the hood. three or 4 threaded rods stick out and hold the fan/ac assembly on on the outside. Once all bolts undone disconnect heater hoses and suck out heater cadre. Then wiggle the unit out from nether the nuance, connecting all vacuum lines and cables. Replace the heater core, clean, and installation is reverse of removal. 86 C10 Short Box Computers are like air conditioners - They tin can't exercise their chore properly if you open up windows. Email Report
TDS-OF-MN Senior Member Posts: 575 Loc: Minneapolis, MN The states Reg: 07-09-01 User Info Send Private Topic View Contour	09-03-08 11:03 AM - Post#1514119 In response to The_Hunter It is a pretty easy job on these trucks, compared to some vehicles. You will want to remove the glove box door and inner box, to let admission to the heater core cover from within the cab. Then equally mentioned, you will unbolt the cover from the nether-hood side. The Haynes manuals have a good clarification of what y'all can do with the control cables, I don't recall the steps, but they were outlined well in there. Removing the inner cover volition as well betrayal the blend-door, then you can verify information technology's operation, and clean as req'd. All in all, it'due south perhaps a couple hour task at the most. Mayhap a scrap longer if your truck has A/C, due to access underhood. Practiced Luck! TomS. '98 Blazer 4x4, 4dr - stock '70 Camaro-sold x-iv-08 '88 Southward-ten Blazer 4x4 (stolen 4-23-06 = recovered every bit full loss) '85 1/2ton 4x4 Pickup 305 westward/ Quadrajet, 700R4, NP 208, 3.08 gears, Destination A/T's, rust- sold December 2014 E-mail Report
Moparman Very Senior Member Posts: 1319 Reg: 06-27-02 User Info Send Individual Topic View Profile	09-03-08 12:54 PM - Mail#1514188 In response to TDS-OF-MN Cheers all, sounds similar it should exist fairly straightforward. Email Written report
gchemist Member #271 Senior Chevytalk Moderator Posts: 25709 Loc: Austin, TX 78748 Reg: 05-09-00 User Info Send Individual Topic View Profile	09-03-08 04:05 PM - Post#1514333 In response to Moparman Cheque my photos. I recently replaced mine. Check with www.autozone.com for instructions. '83 Silverardo XST - ZZ4 powered '95 Jimmy SLT (Bought @131,814) '96 GMC Jimmy LS Ret. @236651 miles '08 GMC Acadia 3.6L SLE Email Study
John Dedicated Enthusiast Posts: 7196 Age: 53 Loc: Montgomery, AL Reg: 01-15-02 User Info Send Individual Topic View Profile	09-05-08 05:30 PM - Mail service#1515937 In response to gchemist Last fourth dimension I did that my Haynes manual said to pull the inner fender well loose. <shrug?> Information technology worked. But that was a 1998 manual on a 1976 model... 1979 2wd K5 Blazer, 350/TH350 1985 4x4 M1009 K5 Blazer, 6.ii/TH400 Email Study
Moparman Very Senior Fellow member Posts: 1319 Reg: 06-27-02 User Info Send Private Topic View Profile	09-08-08 06:07 AM - Mail service#1517600 In response to John Information technology was a easy. Remove the hoses, unbolt the 3 nuts on the engine side of firewall, undo one screw to the defroster and one screw nether the glove box (also removed), undo the clips and washed. The only PITA was that it seems GM had to employ at least 3 sizes of both Royal and Metric screws to do the job. Thank you for the tips, all! Email Written report
Petroholic Contributor Posts: 848 Loc: Moses Lake, Wa. Reg: 08-12-05 User Info Ship Individual Topic View Profile	xi-02-08 04:50 PM - Post#1555508 In response to gchemist I've got to modify my heater core on my 82 westward/AC, and I'yard not sure which nuts to undo on the engine compartment side. Does the whole evaporator/blower case neeed to be removed? E-mail Report
Don M Contributor Posts: 152 Loc: Tampa, Fl. USA Reg: 09-22-07 User Info Ship Private Topic View Profile	eleven-02-08 05:27 PM - Post#1555536 In response to Petroholic Information technology'south the nuts that hold the evaporator comprehend on. Y'all don't need to remove the cover, just the nuts. The studs that these basics are on are what agree the heater box to the firewall. Don Email Report
Petroholic Contributor Posts: 848 Loc: Moses Lake, Wa. Reg: 08-12-05 User Info Send Private Topic View Profile	11-03-08 02:07 PM - Postal service#1556080 In response to Don Chiliad Information technology isn't that bad of a chore, one time you find all the hidden screws(and screws is a very appropriate proper noun) I had a clear advantage though. The engine compartment is empty. Electronic mail Report
Brain151 Forum Newbie Posts: four Reg: 12-09-sixteen User Info Send Private Topic View Profile	12-09-16 07:07 PM - Post#2665353 In response to Moparman Here is an easier way. https://www.youtube.com/sentry?five=XUEeZ20CA7I Email Study
roadmouse Forum Newbie Posts: 45 Historic period: 62 Loc: Gent Belgium Reg: 04-20-10 User Info Send Private Topic View Profile	12-ten-xvi 02:59 AM - Post#2665379 In response to Brain151 that guy is merely L A Z Y!!! jeez! its non like you take to supplant that thing twice a year 1973 Chevy Impala 1977 Chevy Blazer 1979 Chevy truck 1981 Buick Skylark 1973 Plymouth Squeegee 1979 Pontiac Sunbird and ii bikes Email Report
56sedandelivery Deceased Member RIP Posts: 5917 Age: 70 Loc: Everett, Wa. Reg: 02-26-08 User Info Transport Private Topic View Profile	12-10-xvi 03:12 AM - Post#2665380 In response to roadmouse Any you exercise, DON'T supervene upon the heater core with an ALUMINUM one. It's all they told me they carried, and that the COPPER ones were't available whatever longer (???), So, I installed the ALUMINUM one. Does't rut upward worth a ding-dang!!!! I establish a NOS COPPER one on E-Bay, and one of these days, I'm recycling the ALUMINUM 1 with the rest of the bit metals. JMO. I am Butch/56sedandelivery. Email Study