General internal combustion engine questions.

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3
votes
3answers
768 views

Dying car, at random intervals

So my 1996 Jaguar XJR is just stopping at random. It happens when the car is doing low RPM, like when I am coming/stading at a stop light. Any ideas on where to start to troubleshoot this problem? ...
2
votes
1answer
81 views

Engine run-on (dieseling) condition suddenly getting much worse

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - 230,000 miles original owner. OBD-I (or 1.5) GM transitional year with OBD-II style connector. I've been working on my vehicle a lot ...
2
votes
2answers
100 views

How long does items in the engine last in general for standard size cars?

I have a volkswagon passat wagon. It just reach 70000M and it is 2007 model. I recently check the engine at the dealership. Now they asked me to replace all the following items to fix engine overheat ...
2
votes
1answer
50 views

Cylinder Leak-down vs Compression Test

I understand that both cylinder leak down and compression tests are used to test for cylinder head, cracks, warps, and gasket leaks. I understand the difference between how each works: compression ...
2
votes
1answer
411 views

2004 Buick LeSabre sputters in wet weather only when accelerating

My 2004 Buick LeSabre recently started behaving strangely. At first I thought I had filled up with some "bad gas." I used Heat to treat and after a week or so it seemingly started to work fine. Then ...
2
votes
3answers
3k views

Squeaking Noise when Cold Start. Suspect something wrong with belts, Also engine missing when sudden acceleration desired from Total Stop

From the past few weeks whenever I crank my car there is a squeaking noise which may continue for about 30-60 sec or even longer (This is intermittent sometimes it doesn't really happen). The engine ...
1
vote
1answer
475 views

How can I identify which cylinder is responsible for a petrol engine misfire?

My petrol engine has developed a persistent misfire. How can I figure out which cylinder is the culprit in order to hone in on the root cause?
1
vote
1answer
787 views

Coil Pack Location

Where are the coilpacks located in a 1998 Buick LeSabre? Images would be most appreciated. Robert
1
vote
2answers
9k views

High-pitched squealing coming from engine

I've been told that a wet serpentine belt causes this. Is that true? If not, what else could it be? How can I fix this? This is a 2004 Chevy Trailblazer (4.2L 6-cyl. engine). I hear the noise ...
0
votes
0answers
168 views

Engine light in Seat ibiza 2001

Occasionally the engine light is burning when turning on the engine. It doesn't always show though and I don't own this car long enough to see a pattern. If the engine light shows it doesn't go away ...
0
votes
2answers
902 views

RPM jumps up & back down at 40mph

My question is for a 2006 Dodge Magnum, 2.7 liter engine. Just over the past month or so, I noticed when I'm cruisung, just coming from a dead stop, when I'm at 40 mph my car kinda feels like it ...