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Questions tagged [diagnose]

The activity to identify the route cause of a malfunction.

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93 Eurovan - Accelerator pedal/stalling issues

Recently picked up a '93 Eurovan Automatic. It has had a couple of issues since I've owned it. Currently driving across the US after being told the van was mechanically alright. There are a couple of ...
THommus's user avatar
  • 31
2 votes
0 answers
73 views

Illusive evap code - Hard to find the issue

98 Honda Civic Ex. For a while now my car will throw a p1456 evap code but sometimes it doesn't and the system completes the test. I'll randomly hook up my obd2 scanner and it'll either have a ...
user140123's user avatar
1 vote
1 answer
82 views

Suburban stumbles at idle, unknown tube spewing black liquid into air intake is suspected cause. Please advise?

I have a Chevrolet Suburban 2008 1500 with the 5.3L V8 engine. A tube that I believe to be the PCV hose is spewing black liquid into the air intake, and the engine is stumbling at idle. The liquid ...
TheLabCat's user avatar
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1 vote
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Raw fuel on plug 2,4,6 in my 08 jeep liberty sport 4x4 with 3.7 litre engine

This all started after dying at stop sign with no warning, no lights, no smoke, not a mis, nothing but it was unable to start put jump box on it and it crank over a few times. Found out that my ...
Donnie Wright's user avatar
1 vote
1 answer
90 views

2002 Nissan Sentra 1.8 - where does this go? (engine turns over but won't start after unrelated repair)

Background: No knowledge of cars. Car running fine, then heater and engine heat began fluctuating and overheating. Expensive diagnosis- low coolant due to leaking radiator hoses, need to replace. To ...
a3051m's user avatar
  • 11
1 vote
0 answers
370 views

What could this engine noise be? - Kawasaki KLX300

So, Long story short, I made (what is now) a regrettable purchase of a 2001 Kawasaki KLX300 with tapping noises coming from the engine. Additionally, the engine is low on compression and is burning ...
sbm1's user avatar
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0 votes
2 answers
52 views

Montero/Pajero consistent humming at idle and at speed

I have a 2001 Pajero/Montero III 3.5v6 GDI automatic which developed a tiny hum about 8 months ago. This hum has been growing louder ever since and is at a point where you can very easily hear it ...
TheLegendaryCopyCoder's user avatar
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What, if anything, does "Spark plugs starting to blow through" mean?

I just took my old car (2004 Toyota Wish - 1.8 litre petrol engine, 185000km) to a mechanic for a basic service and warrant of fitness. The vehicle passed the warrant, but I was advised "spark plugs ...
davidgo's user avatar
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0 votes
2 answers
110 views

What things cannot be tested(except by elimination) when trying to diagnose a sluggish engine?

As far as I'm aware there are certain things that cannot really be diagnosed if you have a sluggish engine and so you can only find them by elimination. As an example if you test a car due to ...
James Wilson's user avatar
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