Poor Cabin airflow

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Poor Cabin airflow

Postby itsmehb » Sat May 13, 2017 3:40 pm

I have an 89 Trooper with very low air flow in the cabin. It doesn't have air so I'm thinking the heater core is almost completely stopped up after 28 years of use. I've looked at it and looks like the only way to even check it would be to completely remove it, and it looks like a big job. Anyone ever remove the core to clean it and can maybe offer some pointers
1990 Amigo, 2.3 5 speed (sold)
1991 Pick up (long gone)
2000 Amigo, 2.2 5 speed(sold)
1985 Trooper 1.9 4 speed (sent back to KS)
1989 Trooper RS 2.6 5 spd. Red

We get too soon old and too late smart!
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Re: Poor Cabin airflow

Postby geoffinbc » Sat May 13, 2017 8:03 pm

All first gen trucks have brutal air flow. You can pull the fan and check for small leaves. But I have checked mine and it was fine. A replacement high speed fan is what we all need.
1990 Trooper, 3.2L (3.1L .040 over) Pushrod V6, 5 speed manual. 33X10.50X15 BFG M/T KM2's. 3" OME Lift. Cowl Induction Intake. ARB Lockers front and rear. HD Tierods.
Off the road for an overhaul right now.

Big Bore Intake Kits & Greasable Shackles Here
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Re: Poor Cabin airflow

Postby MotoMike » Sun May 14, 2017 3:37 am

I changed out the heater core in our '88 a couple years ago. Clearances were very tight but it did come out the driver's side. Ours has AC so I imagine that made it more difficult than a non AC model. Are all the vent doors moving properly?
1988 Trooper XS 2.6L Auto Trans 200k
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Re: Poor Cabin airflow

Postby itsmehb » Sun May 14, 2017 5:55 am

Thanks, yes, probably something we have to live with. I guess most of us have newer cars also, and there blowers move more air. I'll check the doors to see if I can tell if there operating, and probably drop out the blower and have a look around.
1990 Amigo, 2.3 5 speed (sold)
1991 Pick up (long gone)
2000 Amigo, 2.2 5 speed(sold)
1985 Trooper 1.9 4 speed (sent back to KS)
1989 Trooper RS 2.6 5 spd. Red

We get too soon old and too late smart!
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Posts: 3012
Joined: Fri Jan 14, 2011 9:39 am
Location: Lewisville Tx.
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