My vette c5 cuts out now and then at junctions?? Any advice

[Vette C5]

Hi all,
My vette c5 has started to cut out now and then when i pull up to a junction or roundabout! Any info on how to tweek the engine up a bit? Also speedo stopped working! Also abs turns off when it wants to!! May be all the same fault??
Cheers

>> Edited by Vette c5 on Wednesday 3rd May 14:17

[v8d]

Has the PCM set any DTCs ? Always the best place to start.

[gsmcoverage]

Are you Auto or Manual?

[Vette c5]

gsmcoverage said:

Are you Auto or Manual?

Hi mate,
Its a 6 speed manual. Thanks a lot

[sayerbloke]

When was it last serviced?

[gsmcoverage]

Yeah check the DIC as you are getting ABS faults. Doubt they are connected because the cutting out could be a few things that are car related rather than vette related.
- Water in the Petrol
- Petrol starvation
- Oil Level Low
- Clutch issue (thats why with an auto you dont have control but you have manual so this may be different is the clutch is working and fully depressed)
Mine cut out a few times the same way and i needed to top the oil up. After I did that it was fine.

ABS thing is really only diagnosed through the DIC. Can you pull the codes off?

[Vette c5]

sayerbloke said:

When was it last serviced?

I had the bottom end re-built 1000 miles ago. Had the oil changes again about 500 miles ago. Cheers

[Boosted LS1]

Could be a dodgy connection around the engine. Have you checked all the plugs and sockets for a snug fit? I once disconnected a steering column and it threw up loads of errors.

Boosted.

[Vette c5]

Boosted LS1 said:

Could be a dodgy connection around the engine. Have you checked all the plugs and sockets for a snug fit? I once disconnected a steering column and it threw up loads of errors. Boosted.

Did check but going to double check now!! Thanks mate

[GO55 USA]

Have you recently changed air filter ! If so check trunking from mass air flow meter to throtle body hasent come loose, easly done !

[Vette c5]

GO55 USA said:

Have you recently changed air filter ! If so check trunking from mass air flow meter to throtle body hasent come loose, easly done !

Thanks for your help. will check but haven't changed the filter lately.

[GO55 USA]

Have you steam cleaned your engine ! water in some of the sensor plugs ect,causes a resistance & wrong values ect sent to PCM !

[Vette c5]

GO55 USA said:

Have you steam cleaned your engine ! water in some of the sensor plugs ect,causes a resistance & wrong values ect sent to PCM !

Hi, No haven't cleaned it for about 6 months with water.
Thanks for all your help.

[eurovettes]

If the car has big miles and you havnt changed the gas filter - this may be a cause - good gas pressure is essential - I have not heard of this symptom with C5's mostly c4

[Gixer]

Welcome on board Keith

[c5ragtop]

Hey Keith - welcome to the Forum. We will all benefit from your input.

[ZR1cliff]

c5ragtop said:

Hey Keith - welcome to the Forum. We will all benefit from your input.

definitely! welcome Keith

>> Edited by ZR1cliff on Saturday 6th May 13:41

[Vette c5]

eurovettes said:

If the car has big miles and you havnt changed the gas filter - this may be a cause - good gas pressure is essential - I have not heard of this symptom with C5's mostly c4

Hiya,
Its done 50k but only 1k on the new bottom end!
Cheers for your help

[anonymous-user]

Gixer said:

Welcome on board Keith

[acrman]

I had a similar problem that we traced to a cluster of earth wires on the left side of the engine block,they had not been done up tight enough when the engine was reinstalled,it caused the car to cut out every so often without warning,it took me ages to find that fault. best of luck...Clive.