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Questions tagged [diagnose]

The activity to identify the route cause of a malfunction.

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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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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
1 vote
0 answers
21 views

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
0 votes
1 answer
111 views

Do ODB-II/EODB/JODB readers for dealers/mechanics show more than consumer readers?

When you go to an auto parts store and buy an ODB-II/EODB/JODB code reader, you will be buying a device that will read vehicle fault codes via a standardized data port. Do vehicle manufacturers sell ...
End Antisemitic Hate'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
2 answers
745 views

Crank no start - no spark

I have a crank - no start issue on a Nissan micra from 1999. It is a 1.3 gasoline engine. Up to this point I found out there seems to be no spark. Put a new spark in a wire and placed it on the ...
Beni Bogosel's user avatar
0 votes
1 answer
65 views

96 318Ti overheating help

So my 318 Ti has been overheating and I've been trying to diagnose it myself but haven't had any luck and first bmw I've owned so need some suggestions or some help in general
Jessica Lynn's user avatar
2 votes
3 answers
2k views

2004 Honda Civic OverHeating (Lots of Details and Pics to Help Diagnose)

I have a 2004 Honda Civic thats new to me and just started overheating. I first noticed a month or two after I bought it...I was idling in park for 45min or so when I noticed steam coming from the ...
NULL's user avatar
  • 301
0 votes
1 answer
946 views

What is the most likely cause of a cylinder to fail in this Peugeot 107?

My work's Peugeot 107 5-speed manual is running on 2 cylinders instead of 3. I know this because it produces noticeably less power than a Toyota Aygo that I drive occasionally that has the same 998cc ...
user60481's user avatar
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0 answers
66 views

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 answers
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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
  • 11
1 vote
2 answers
1k views

Creaking sound from the rear right side of the car

I have a 2017 Ecoboost that's currently at ~27,000 miles. Recently, I noticed that the rear right side of the car makes a creaking sound when making sharp turns at slow speeds. Sometimes, the noise ...
Anish Sana's user avatar
3 votes
1 answer
316 views

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
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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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1 answer
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What things are tested during a diagnosis for a sluggsh engine?

I enquired at both dealer and garage about diagnosing my car for being a bit sluggish and less peppy. Both said it usually takes one hour to find the problem\narrow it down for such a matter. I'm ...
James Wilson's user avatar
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1 vote
1 answer
935 views

Hi I have a 1982 Honda magna motorcycle my rear wheel locked up while i was ridding

I have a 82 Honda Magna. I was riding down a hill and it just locked up on me. I skidded for about 5 feet and it wouldn’t budge. After yanking it back and forth for a while it broke free and I was ...
PabloDiablo 's user avatar
2 votes
1 answer
2k views

What other problem than a blown head gasket can a failed C02 test indicate?

I had a very classic (or so I thought) case of blown head gasket in my car: Leaking a ton of coolant Bubbles in the coolant, when engine running Coolant seems to be brownish Failed CO2 Test on the ...
user1721135's user avatar
4 votes
2 answers
5k views

Help identifying misfire conditon on 1998 Honda Civic DX

I'm struggling to identify the cause of a misfire condition in my 1998 Honda Civic. It has D16Y7 engine with 185,000 miles on it. The spark plugs, wires, distributor cap, rotor, and ignition coil ...
Robert Stiffler's user avatar
1 vote
1 answer
4k views

No Start, Dim Lights, Battery Tests Good

I have a 1999 Marcedes-Benz ML320 that will not start The lights in the cabin are dim, the headlights will not turn on, the ignition does nothing when you try to start the car. We decided to try and ...
Drew Major's user avatar
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
2 answers
19k views

will it freeze if i leave it overnight with no antifreeze or water

will my engine block freeze with no antifreeze or water? I just replaced the water pump and i am stuck on the power steering pump mounting brackets i am hoping to find a diagram or a link to a website....
Richard Daniel Foster's user avatar
3 votes
1 answer
4k views

How to isolate whining noise in 4wd power train?

I recently purchased a low-mileage '99 4runner, with a manual transmission and part-time 4wd. From the beginning, I've noticed a whine in gears 1-3, that increases in pitch when I'm accelerating. ...
Cognitive Hazard's user avatar