My heating/cooling system is dead & speedo is very tempremental!

[Guest jimmy4lfc]

Hello everyone,

 

I bought my Supra last weekend and drove it home from sheffield. It seemed as though everything (except the heating) worked fine when i got the car but when i drove it this weekend, things started going wrong!

 

The heating/cooling system seems to be dead. None of the lights on the instrument panel work, cig lighter doesnt work and nothing coming out of the vents (neither hot or cold air). Does anyone know whats wrong with it? how can i fix it?

 

Also, on my way home from picking the car up, i travelled on the motorway home and whilst doing a steady 60 mph the speedo dropped and was stuck on 0. it stayed like this for about 5 minutes then sprung back up to 60 again. I drove the car yesterday and the same thing happened, but alot more regularly and even at different speeds. Think the speedo will pack up soon. can anyone shed any light on this fault?

 

Any information will be grateful as the supra is the car of my dreams and this one looks particulary nice.

 

Cheers Jim

[Scott]

Hello everyone,

 

I bought my Supra last weekend and drove it home from sheffield. It seemed as though everything (except the heating) worked fine when i got the car but when i drove it this weekend, things started going wrong!

 

The heating/cooling system seems to be dead. None of the lights on the instrument panel work, cig lighter doesnt work and nothing coming out of the vents (neither hot or cold air). Does anyone know whats wrong with it? how can i fix it?

 

Also, on my way home from picking the car up, i travelled on the motorway home and whilst doing a steady 60 mph the speedo dropped and was stuck on 0. it stayed like this for about 5 minutes then sprung back up to 60 again. I drove the car yesterday and the same thing happened, but alot more regularly and even at different speeds. Think the speedo will pack up soon. can anyone shed any light on this fault?

 

Any information will be grateful as the supra is the car of my dreams and this one looks particulary nice.

 

Cheers Jim

 

Ok, this is going to depend a lot on how competent you are at working on your car. Are you quite happy working with the inner electrics of the dash? Are you ok with removing piping from the engine etc?

 

First things first, is the passenger side carpet wet?

 

Next check your fuses (drivers side footwell, right hand side). Check all of them, don't just be lazy and look up with a torch squinting and guessing Either pull them out one at a time checking them thoroughly or put a multimeter on them.

 

Next its going to be disassembling your entire dash including speedo etc etc etc.

[Guest jimmy4lfc]

i am quite competant on working with the car myself. as long as someone tells me what needs doing and how to do it. Also, the carpet is not wet. i have checked the fuses under the bonnet, but didn't know that there is another fuse box! i'll have to check this tomorrow morning before work and get back to you.

 

How easy is it to remove the dash board?

 

cheers for the info

[michel lane]

if its an auto , then your speed sensor may be faulty, but check the fuses first for the heater controls as scott suggest

[Scott]

i am quite competant on working with the car myself. as long as someone tells me what needs doing and how to do it. Also, the carpet is not wet. i have checked the fuses under the bonnet, but didn't know that there is another fuse box! i'll have to check this tomorrow morning before work and get back to you.

 

How easy is it to remove the dash board?

 

cheers for the info

 

Removing the dash is pretty straight forward. There are a few guides with pictures that make it easy. Just search for "removing the dash" and you will come accross them. Its on hecklers site also iirc.

 

Tackle it one thing at a time. Its amazing how some things are related in ways you could never imagine. I'm thinking that your heating problem may be something as simple as a fuse. Stick to the electrics for now, once the dash is up and running, if you still don't have any heat, move onto the engine plumbing.

 

As above, the speed sensor sounds like the fault for the speedo being a bit jumpy. My wife's MR2 has a blip every now and again. Its not really anything to worry about tbh. Of course its annoying though

[Guest jimmy4lfc]

thanks scott! i hope theyre both straight forward, little, inexpensive jobs! i think i'd have still bought the car with these faults on, just really frustrating that the fella i bought it from didnt tell me about them! Also, the speedo is annoying! especially when going through speed cameras!

 

are the such things as digital speedos? like they have in the honda s2000? i'd love that in my car!

 

thanks again scott

[Scott]

thanks scott! i hope theyre both straight forward, little, inexpensive jobs! i think i'd have still bought the car with these faults on, just really frustrating that the fella i bought it from didnt tell me about them! Also, the speedo is annoying! especially when going through speed cameras!

 

are the such things as digital speedos? like they have in the honda s2000? i'd love that in my car!

 

thanks again scott

 

Believe it or not the speedo on your car IS digital. It just doesn't have a digital output. Thats the reason its going a bit funny.

 

A couple of the guys have digital readouts on here. Check out Jamie P's project thread to see one of them.

 

Costly though.

 

That wouldnt' fix your issue though as its the sender that will be at fault (most likely).