Ford - Escort :: 2002 - Getting PO304 / Misfire On Cylinder 4
For the past few days I've been trying to track down the problem with my '02 Ford Escort. First thing I did was change the spark plugs which smoothed out the engine some, but I still have the PO304 (misfire #4 cylinder). Next I swapped the plug wires between #3 and #4 and reset the ECU hoping the code would come back PO303 (misfire #3 cylinder), yet it still set a code for cylinder #4 meaning the plug wires were good. I then tested the coil and camshaft position sensor which both tested good.
After this I checked the compression on #4 and it was good at 175 PSI. When I removed the #4 plug to test the compression it was gas soaked so the injector is firing, but apparently not the plug. My Chilton's manual says the center pin (ignition/start/run) on the wiring harness for the coil should have 10 volts with the ignition switch in the off position. I checked this and only had 0.1 volts. Where this wire receives it's voltage from and able to tell me more about what to look for or test? I never expected to have so much problem finding a cylinder misfire.
Pontiac - Grandam :: Shaking / Check Engine Light Came On And Started Blinking - No Compression In Cylinder
About a week ago I was driving my Pontiac 2003 Grand Am V6 and it began to violently shake and the "check engine light" came on and started blinking. I then immediately took it to the mechanic It has been with the mechanic for 6 days and they were unable to locate the problem. They called me today and I was told that I have no compression in one of the cylinders (I have done business with them before and felt comfortable in that I wasn't being taken advantage of). Also, is there any problems in the future with getting a cylinder replaced i.e. other parts of the engine that might correlate?
View 17 RepliesEscort :: 99 Ford With 2.0 SOHC Engine Making Tapping Noise Intermittently
I have a 99 ford escort with a 2.0 SOHC engine and for the last week or so it was making a tapping noise but it was intermittent. Today, I revved the motor up slightly and it started making this horrible clanking noise and then it stalled out. I tried starting it up and when it did start to run, it made the same clanking noise then it shut off. I tried to start it up and it wont even turn over. Its acting like it seized up but I am not sure if its in the top end or the bottom end. Now I know the CVH engines are notorious for dropping valve seats but I am not sure how to diagnose it if that is what happened.
View 6 RepliesFord F-150 - 1997-2003 :: Code PO304 - Cylinder 4 Misfire
I have a '98 F150 4X2 extended cab with a 4.2l with 233K on it. I have no problem with drivability when I drive 5 miles to work. However, a couple of weeks ago when I had to drive 15 miles to the liquor store to get what I needed (I live in a dry county) I got back into my truck, started it and drove of. It drove like crap like I lost a cylinder. Drove it back home those 15 miles, let it cool off, put my scanner on it and got a PO304 code and I think a PO174 (bank 2 lean) code. Went to the #4 cylinder and found the plug had loosened up.
Tightened it back up, cleared the codes, and went through my normal weekly routine of driving to work with no problem. Made a booze run the next weekend and the same thing happened. Limped back home and found another PO304 code. Found the plug to be tight and in good condition but changed all the plugs since they were cheap copper core and had 20K on them. The wires only have 20K on them, too. Installed platinum plugs, drove all week 5 miles to work and back just fine. Made another 15 mile run yesterday and the same crap happened all over again after I got out of the store and drove home.
Corolla / Matrix 2009-13 :: Lost Compression - Car Has Been Pinging A Lot Recently
2009 Corolla 1.8 220K miles. Car has been pinging a lot recently. Codes set were P0300, P0301 and P0302 but no CEL??? Did all the test I know to do, problem isolated to cylinders #1 and #2. I did a compression check with disappointing results. Left to right left being the belt side: #1 60 PSI, #2 60 PSI, #3 125 PSI and #4 160 PSI. Throttle was wide open when I did the compression test and engine was hot. What happened????
View 14 RepliesTacoma :: 2003 - Misfire In Cylinder 3 - Low Compression?
I just picked up my truck from my mechanic after he was trying to determine what was causing a misfire in cylinder 3. He swapped coils and then did a compression test and found the following results in cylinders 1 through 4, in order: 143, 132, 57, 151. He said I need to replace the engine or start with adding Engine Restore. Is there a chance I don't need to replace the engine? Could it need a valve job?
View 10 RepliesGolf IV / Jetta IV :: VR6 Misfire On Cylinder 4 - Low Compression Level Of 90
I am a new vr6 owner. I just purchased mine not to long ago. It seems to have developed a pretty mean misfire on Cylinder #4. It is also showing a low compression level of 90 on cylinder #4. all my other cylinders show somewhere between 105-110. I replaced my wires and my coilpack. It did not improve anything, infact, my car seems to run worse now. I am baffled as to what can be causing my misfire.
View 7 RepliesFord F-150 - 1997-2003 :: 1998 4.2 V6 - Low Compression Cylinder 2
Got myself into a tight situation with a truck I recently purchased and seeing if any of you have experienced the same thing or know what may be going on. I bought a 1998 F-150 with 213,000 miles and a 4.2 engine. When I test drove the truck it had a small chugging vibration, for lack of a better term, but the check engine light was not on and it seemed to run great while driving. No problem at highway speeds nor below.
On my way home the check engine light turned on which turned into a blinking check engine light and I knew I had been taken by a person with a diagnostic computer who cleared the codes. He made a comment about it turning on before but his "buddy" fixed the issue but I took his word because he seemed like a decent person.
I took it to a local shop and, if I remember correctly, error code 302 came up for misfire on cylinder #2. He changed the plugs and wires and it seemed to run a lot better. About 5 miles later on my way home the check engine light turned back on, but it still seemed to run smoothly by the time I got home.
The next day I took it back to him and this time we got the same error code plus (again going of my poor memory) error 174 which he said was cylinder #2 running lean. Earlier today he called and said he checked over everything and couldn't figure out anything wrong until he checked the compression. He said the other 5 cylinders were around 130 psi and cylinder #2 was at 75 psi.
Now this mechanic runs more of a brake and exhaust shop so his next statements are why I'm coming to all of you for your opinions.
He said the cylinder was shot and everything inside was shot including the piston, rings, and everything else associated with #2. (I don't think he got in there to really check it out) After scouring the forums I hear more people talk about the valves may not be sealing correctly and what sound to me, to be smaller issues than the entire #2 cylinder being toast.
I'm not sure if I am going to go after the person who sold it to me or not yet but I would like to see what others may think is going on before I light this guy up. I plan on taking it to a more proficient mechanic to do the work, if deemed worthy of work, but would like to kmow where I stand.
Ford F-150 - 1997-2003 :: 1989 - Low Compression In Cylinder 4
I have a '98 F150 with 4.6L Triton with low compression in cyl # 4 @ approx. 30#; all other cyl are at 140# or so. Would it be a burnt valve, bent valve, cam? Any harm if I drive it like that? I have not have it on the road yet.
View 14 RepliesFord F-150 (2004-2008) :: Low Compression And Misfire On Cylinder 2
I sea Foamed the truck today. I will be pulling my heads most likely and am doing a few things beforehand just in case. History: low compression and misfire on #2. Have changed plugs and swapped out cops. Paper against exhaust pipe sucks in and pops against the pipe intermittently. Seems like intake valve.
Anyways, poured in a whole damn bottle through the brake vacuum line. The engine sputtered a bit but never stalled. I saw almost no smoke after a whole bottle!! I thought with 156000 miles it would smoke like mad. I have taken very good care of this truck and changed oil every 3 to 5 with synthetic 5-20 since new. Could it be that clean???
Subaru - Forester :: 1998 - Rough Running / One Cylinder Has No Compression
will it hurt my 98' forester to drive it when one cylinder has no compression? They tell me it needs a valve job for 2,500. They already put a mass air flow sensor in, and replaced plugs and wires. Still got the miss, but I need the vehicle.
View 2 RepliesVolvo - S70 :: 1999 - Idling Causing The Car To Shake / No Compression In Cylinder 5
My '99 volvo s70 t5 with 132k miles is idling poorly causing the car to shake, and the mechanic who looked at it said I am not getting compression in cylinder #5. He recommends a valve job (not sure if it is the intake or exhaust valve but said 95% of the time that is the issue). The mechanic said they completed the compression test, and that is what told him it was cylinder #5.
View 1 RepliesFord F-150 - 1997-2003 :: 1999 - Bad Cylinder 2 Valve / Very Low Compression
1999 F150 4.2... Has at least a bad #2 cylinder valve. Very low compression. 200k on the truck. Here's the question: drop another motor or just do the heads?
View 5 RepliesSubaru - Forester :: 2004 - Check Engine Light On / 4th Cylinder Either Low Or No Compression
Our beloved 2004 Subaru Forester has the check engine light on. We've been told that the 4th cylinder has either low or no compression. Is this fixable/worth fixing? Would you replace the engine? The car has 183K miles on it, and runs great! It is stuttering now, due to this issue, but otherwise - runs great and is in good condition!
View 11 RepliesMalibu - Chevrolet :: 2003 Starting Idling Really Hard - Cylinder Compression
My 2003 Chevy Malibu recently, out of nowhere, starting idling really hard. It shakes and jumps quite a bit when it idles, much like a car creeps when it's about to run out of gas. It drives fine at speeds over about 10-15 mph, but then when it slows down it gets shaky and bumpy.
View 9 RepliesFord Super Duty (1999-2016) :: 2011 - No Compression On Cylinder 4?
I have no compression on #4 cylinder. Is there any way to check the cylinder for damage. So I can just replace that piston if it's good?
View 1 RepliesFord 6.0L Power Stroke Diesel :: 2006 F350 - No Compression In Any Cylinder
I bought an 06 6.0 f 350 4x4 dump bed cheap. seller said it was sitting for 1-2 years and wouldn't start. ficm is at 48 volts fuel pressure is at 100 oil pressure builds fine, then checked compression and reading no compression in any cylinder. My mechanic says new motor or possibly both head gaskets are blown.
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Bad Cylinder - Smoking And Low Compression
I got a deal on a1997 f450 7.3 what does it take to swap to 2001 f250 7.3.mine has a bad cylinder with smoking nd low compression.
View 5 RepliesVolkswagen - Beetle :: 2003 TDI - Compression Leak From Valve Cover Around Number 1 Cylinder
I purchased a 2003 VW Beetle Diesel and have compression leaking from the valve cover around the number 1 cylinder. It does not run or will barely run. Is this a common problem and what could cause this. i haven't tried anything yet.
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