Diesel - Poor Starting. NOT the heater Plugs

Jun 14, 2006 8 Replies

Chaps,



Just bought a Citroen 1.9 ZX TD. Runs great, 114k miles, sailed through it's MOT. Only problem is it's a bastard to start. It's not the heater plugs as I've had them checked and cleaned by my sparky mate. When I got the car it had a battery on which was way too small so I've replaced that. It didn't cure the problem, but I didn't really expect it too.



Could it be gummed up injectors? I've ran a tankful of diesel through it with injector cleaner in and caned it for 400 miles. Now it starts first time when cold, but it's still a pig when hot. Needs a good churn on the starter to get it to fire. 10 seconds or more.



TIA



Mike P


if it was gummed up injectors then its likely to run like a bag of s*it

Well, it idles roughly and felt weak compared to my last TD ZX. Feels a lot better after a good thrashing, but the idling is still a bit rough and it's a pig to start when hot.

Cheers Mike

Air leak in the fuel system? Does it start easier if you use the priming pump?

Good point, I'll give it a go and let you know.

cheers Mike

I read a story (probably on here) about XUD (and others) valve clearances causing poor starting. Might be worth investigating?

Glow plugs hardly affect hot starting. Dunno about injectors, I'd expect lots of unburned fuel smoke and/or poor performance from problems with them.

Good luck!

Change the fuel filter and clean al cr*p out of bottom of filter housing make sure filter has seal intact. It's most unlikely that this engine has ever had the valve clearances checked tight clearances can be a cause of poor hot starting. There can also be a problem with the starting aids - glow plug - control box check by waiting 5-10 secs after light goes out before attempting to start.

How did you sparky friend check the starting aids?

PhilC

Check the valve clearances- sounds very much like they're too tight, and holding valves open when hot- would certainly cause poor hot statering, and a poor hot idle.

Tim..

I had that problem on an AX 1.5D at about 40,000 miles.

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