BX Diesel automatic not starting

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Dyane425
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BX Diesel automatic not starting

Post by Dyane425 » Sun Jan 21, 2018 10:03 am

Occasionally, my BX Diesel refuses to start. Engine does not turn. It always starts on the second attempt. There is no clicking. Occurs when starting cold or hot, once every 2 to 3 weeks. I was using the car daily for work, now drive it 2 to 3 times per week.
I replaced glow plugs 2 months ago. All the connections to battery, alternator and starter motor have been cleaned, and are secure.
Not sure if it is starter motor, or one of the plug in relays underneath the glove box. If it is the latter, which relay would it be?
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rutter123
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Re: BX Diesel automatic not starting

Post by rutter123 » Sun Jan 21, 2018 11:41 am

I would suspect these first. Faulty solenoid on starter motor, worn ignition switch both of these can give intermittent starting issues both easily checked with a multimeter, I had same issues with my diesel turns out it was a worn ignition switch but only after a new starter was fitted, I found mine played up more during the winter. Should you need any of the above I'm sure I have some switches and several starters used but tested.
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90 BX TZD TURBO 290k 50 SHADES OF RED (300K's will be acheived)
90 BX GTI 8V 117K VEN RED
91 BX TZD TURBO RUST BUCKET BEING BROKEN FOR SPARES
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Sun Jan 21, 2018 12:06 pm

rutter123 wrote:
Sun Jan 21, 2018 11:41 am
I would suspect these first. Faulty solenoid on starter motor, worn ignition switch both of these can give intermittent starting issues both easily checked with a multimeter, I had same issues with my diesel turns out it was a worn ignition switch but only after a new starter was fitted, I found mine played up more during the winter. Should you need any of the above I'm sure I have some switches and several starters used but tested.

Many thanks. Will test solenoid and switch.
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Sun Jan 21, 2018 4:40 pm

PM sent
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Jaba
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Re: BX Diesel automatic not starting

Post by Jaba » Sun Jan 21, 2018 5:35 pm

I cured mine of exactly this problem by running a lead from the ignition switch , cable 3 I think, direct to the starter solenoid.
This was after changing starter motor , cleaning all connections and putting up with it for far too long.
I tried fitting a push button starter switch too. This worked but upset the ABS ECU so that was a non starter.
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Mon Jan 22, 2018 6:40 am

Many thanks for the advice
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Thu Jan 25, 2018 9:56 pm

Continuing to have non starting on the BX Diesel automatic.
Attempted to start 5 times without avail. Put transmission into N instead of P and started instantly.
Same happened later on.
Then started fine in P.
Wondering if non starting related to automatic gearbox fault.
Previously had a faulty fuel filter housing (now resolved), and was cutting out and restarted the car 5 times each journey on the daily commute. Possibly caused strain on the ignition switch/starter motor.
Any ideas/advice gratefully received
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Defender110
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Re: BX Diesel automatic not starting

Post by Defender110 » Fri Jan 26, 2018 1:39 pm

Yes automatics have an inhibitor switch on them that prevent you cranking when in drive or reverse. I would imagine this is your fault. Might just need the connector cleaning. It is located on the gear selector IIRC.

Edit quick search brought this up:

"it is a combined switch on an auto does both, rev lamps and gearbox lock out, it is located on the front top of gearbox with a 4 way plug connector."
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Fri Jan 26, 2018 4:16 pm

Defender110 wrote:
Fri Jan 26, 2018 1:39 pm
Yes automatics have an inhibitor switch on them that prevent you cranking when in drive or reverse. I would imagine this is your fault. Might just need the connector cleaning. It is located on the gear selector IIRC.

Edit quick search brought this up:

"it is a combined switch on an auto does both, rev lamps and gearbox lock out, it is located on the front top of gearbox with a 4 way plug connector."


Thanks very much for your help
Will give it a good clean (and if necessary replace) this weekend
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Sun Jan 28, 2018 5:55 pm

Defender110 wrote:
Fri Jan 26, 2018 1:39 pm
Yes automatics have an inhibitor switch on them that prevent you cranking when in drive or reverse. I would imagine this is your fault. Might just need the connector cleaning. It is located on the gear selector IIRC.

Edit quick search brought this up:

"it is a combined switch on an auto does both, rev lamps and gearbox lock out, it is located on the front top of gearbox with a 4 way plug connector."


Many thanks. Cleaned up the terminals with wire brush, applied copper grease, and now starts perfectly - in P and N!

I'm considering getting a spare inhibitor switch for the future. Is the combined reverse/inhibitor switch on automatic BXs the same as the reverse switch on manual BXs?
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rutter123
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Re: BX Diesel automatic not starting

Post by rutter123 » Mon Jan 29, 2018 4:50 pm

No it won't be, as defender 110 says on the auto it is a combined switch incorporating the gearbox lock out and rev light switch on the manual it's purely a rev light switch, I may have a spare 4 pole auto switch somewhere if needed let me know if you still need the ignition switch.
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90 BX TZD TURBO 290k 50 SHADES OF RED (300K's will be acheived)
90 BX GTI 8V 117K VEN RED
91 BX TZD TURBO RUST BUCKET BEING BROKEN FOR SPARES
08 CITROEN RELAY VAN LWB THE WORKHORSE 116K

The rest in the house
09 Suzuki Swift
52 Toyota RAV4 ultimate Jap reliability 175k
84 Yamaha RD350YPVS locked away since 99. 24k

Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Thu Feb 01, 2018 6:08 pm

rutter123 wrote:
Mon Jan 29, 2018 4:50 pm
No it won't be, as defender 110 says on the auto it is a combined switch incorporating the gearbox lock out and rev light switch on the manual it's purely a rev light switch, I may have a spare 4 pole auto switch somewhere if needed let me know if you still need the ignition switch.


Many thanks. I've ordered the correct switch. I'll hang fire on the ignition switch for the time being.
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Dyane425
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Re: BX Diesel automatic not starting

Post by Dyane425 » Thu Feb 01, 2018 7:07 pm

Upon further investigation, it appears that the automatic gearbox selector is at fault.
When in Park, the selector lever on top of the automatic gearbox at the front is not in the forward most position; it is actually in reverse, hence the car wont start in reverse. I pulled the lever forward, so it is in the Park position. and the car starts instantly. I've done this a few times, to ensure it's not a blip.
Any ideas on how to adjust the automatic gearbox selector mechanism?
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