Blower motors not working?

MSTORM

MEMBER
1986 JAGUAR XJS

Air Conditioning problem
1986 Jaguar XJS V12 Two Wheel Drive Automatic 50K miles

I have a 1986 Jaguar XJS, after placing it back on the road this spring I noticed that I was getting no air flow out of the vents. The A/C works as when you start off down the road you can feel a little cool air coming through the vents. I checked the fuses (all that I could find. There are many) replaced the A/C relay, but have not checked the voltage at the motors or the switch due to the nightmare of reaching them on this model. I also found out that there are (2) blower motors and the odds of both of them going south at the same time are remote. Any thoughts? The V12 puts out a lot of heat and in the summer. It's a nightmare! Thank you for your input and thoughts,

Best
MStorm

2 Replies

DAVE H

MECHANIC
13,383 POSTS

BLOWER MOTOR(S) INOPERATIVE
Defective "LOW" or main relay. Defective blower resistor. Defective amplifier. Defective amplifier in-line 1-amp fuse (behind left side kick panel in Brown wire). Defective coolant thermostat.

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Sunday, January 10th, 2010 AT 5:29 AM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Here is a guide so you can check the blower motors. I have seen the main blower relay go out on these cars, here is the location for that so you can swap it out.

https://www.2carpros.com/articles/how-to-test-an-automotive-hvac-system-blower-fan-motor-a-detailed

Check out the images (below). Please let us know what happens.

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