JG Auto Repairs.

JG Auto Repairs. Over 30 years experience repairing Motorcycles, Cars and light commercial vehicles. Fast, friendly a

I had a call from a guy with a 2016 Peugeot 2008 with a warning on the dashboard for an electrical fault, I collected th...
25/01/2021

I had a call from a guy with a 2016 Peugeot 2008 with a warning on the dashboard for an electrical fault, I collected the car and once back at the workshop plugged in the diagnostic scan tool and had faults for body control module no communication with battery maintaining control module and engine ECU no communication with battery maintaining control module.
On lifting the bonnet I knew straight away what the problem would be. There were large amounts of chewed up foam and rodent poo, which i identified as rats (but i am no expert in rodent poo), looking at the battery maintaining control module which is located on top of the battery cover I found two wires chewed away.
So I soldered in two new lengths of wire and repaired the loom and cleaned of the foam and poo (not the best part of being a vehicle tech!), reset the control module and deleted the fault codes and the car was back to normal with no warning on the dashboard and the start/stop working again.
The customer did say to me that they had had a rat in the garden but never thought it would get or eat bits of the car.

A good customer of mine has a BMW E46 M3 on which we have done many jobs, he recently told me that when cornering and ac...
22/10/2020

A good customer of mine has a BMW E46 M3 on which we have done many jobs, he recently told me that when cornering and accelerating there was a loud rumble from the rear, this turned out to be worn clutches in the rear limited slip differential.
The BMW system is very clever in the way it works but is also very expensive when it wears out, in the end we converted it to a more conventional limited slip Quaife differential which involves removing the old diferential and clutch pack and fitting the quaife unit, new bearings and a spacer to allow the original driveshafts to be used.
The Quaife units are used in race and rally cars and offer much better traction control, especially when driving hard or on the track.

We have moved!Still on the same site just a bigger workshop, we can now be found at Unit 27.
05/09/2020

We have moved!
Still on the same site just a bigger workshop, we can now be found at Unit 27.

This is the second VW and this time it was a Golf fitted wth the 1.4 TSI engine which is turbo and supercharged, the cus...
08/02/2020

This is the second VW and this time it was a Golf fitted wth the 1.4 TSI engine which is turbo and supercharged, the customer said it had the engine management light on and would not go above 3000 revs and ran very badly, the fault codes were all for camshaft position or items driven by the camshafts eg high pressure fuel pump, there was also a loud rattle on start up, so i checked the engine timing and sure enough the camshaft timing was out, this was caused by the timing chain stretching and the tensioner was at full extension but still the chain was slack, so the car was re-timed and a new chain kit fitted and this cured all the running problems. The chain was so stretched that if left i am sure the valves would have hit the pistons and caused major engine damage!

I have had a couple of VWs in the workshop recently with different issues: The first was a Polo with the DSG (direct shi...
08/02/2020

I have had a couple of VWs in the workshop recently with different issues: The first was a Polo with the DSG (direct shift gearbox) transmission, it was recovered in as a non start and flashing transmission light, after connecting the diagnostic scanner to the car there was no communication between the engine ecu and the transmission ecu, the fuse that powers the transmission unit had blown and a new fuse did the same, the problem was in the hydraulic accumulator for the transmission gear selection, this was removed and sent for repair with a specialist, refitted, reprogrammed and finally road tested.

This Land Rover Discovery 3 had the electronic handbrake jammed on and the electronic handbrake mechansim had to be rese...
09/12/2019

This Land Rover Discovery 3 had the electronic handbrake jammed on and the electronic handbrake mechansim had to be reset as the motor had wound the cable adjuster up so tight the emergency release would not work. I later found out that another garage had replaced the rear brakes but not adjusted the handbrake correctly, or used a diagnostic tool to put the mechanism into service mode while changing the brakes, hence the over adjusted cable adjuster.

I have had this old Triumph Spitfire in the workshop before and this time the head gasket had failed causing it to over ...
28/10/2019

I have had this old Triumph Spitfire in the workshop before and this time the head gasket had failed causing it to over heat, sometimes it is nice to work on something that is simple compared to modern cars.

I had a Mercedes SLK recovered to the workshop on a very wet day, the owner said the car had stopped on the motorway and...
05/10/2019

I had a Mercedes SLK recovered to the workshop on a very wet day, the owner said the car had stopped on the motorway and would not drive or steer and had lots of warning lights on the dashboard.
I checked all the modules with fault codes, transmission, ABS/traction control and engine control. In the end i manage to track down water ingress into the central locking control module and this was sending wrong signals to the CAN (controller area network) circuit and upsetting all the other signals to the modules in the network.

This VW Golf timing belt is a straight forward job but a vital part of the cars servicing, notice how they use one main ...
05/10/2019

This VW Golf timing belt is a straight forward job but a vital part of the cars servicing, notice how they use one main timing belt with a smaller secondary belt to run the second camshaft.

This Ford Focus came into the workshop because it was losing coolant and misfiring, on close inspection of the spark plu...
27/08/2019

This Ford Focus came into the workshop because it was losing coolant and misfiring, on close inspection of the spark plugs, one spark plug chamber was full of coolant and the other was full of coolant and oil, the cause was the water jacket core plugs leaking where they had rusted through, this in turn caused the spark plugs to misfire and corroded two of the camshaft cover retaining bolts where they no longer could keep the oil in the camshaft housing
The remedy was two new core plugs, two corroded bolts drilled out and tapped and lots of cleaning.

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07905076341

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