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Discussion Starter · #1 ·
Hi, I bought my son a 1998 Nissan Navara. 6 months after it started making a slight popping noise when first started then slightly started blowing white smoke, however when out on the road runs fine. Over the last few weeks it has seemed to get a bit worse and he said it seems to sound a bit ruff whilst out on the road now. It's a 4 cylinder diesel. We assumed it was the injectors so we replaced them yesterday but didn't help at all. Was blowing tons of white smoke straight after maybe even seemed worse.

It doesn't use water or oil and doesn't over heat. Just running a bit ruff and blowing white smoke.

I would appreciate any suggestions please.
 

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Hi, I bought my son a 1998 Nissan Navara. 6 months after it started making a slight popping noise when first started then slightly started blowing white smoke, however when out on the road runs fine. Over the last few weeks it has seemed to get a bit worse and he said it seems to sound a bit ruff whilst out on the road now. It's a 4 cylinder diesel. We assumed it was the injectors so we replaced them yesterday but didn't help at all. Was blowing tons of white smoke straight after maybe even seemed worse.

It doesn't use water or oil and doesn't over heat. Just running a bit ruff and blowing white smoke.

I would appreciate any suggestions please.
Welcome along.

White simple is either a blown head gasket letting water into the combustion chamber or excess unburnt fuel.

It sounds like not the the head gasket, so my money would be on too much diesel. As you have replaced the injectors, I suggest the fuel pump is playing up.
 

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Discussion Starter · #5 ·
Yes I've been told the injector pump. Was about to pull the engine out for rebuild as it has 300.000 k's on it. So I got a compression test done on all the cylinders and they all read exactly 300. So they are thinking it's okay.


Do you know if we can just take the fuel injector pump to the specialist to have it tested as it's 2 hours away or do we need to take the whole car?
Sorry for all the questions just getting quidance of people I know so second opinion's are good. Thank you.
 
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