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 - 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 :: 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 RepliesFord F-150 - 1997-2003 :: 1998 - Cylinder 1 Misfire / Code P0301
I have a 98 F150 4.2L with code P0301 Cylinder 1 Misfire.
This is what I have done so far. New plugs, coil pack, plug wires, TPS, EGR, EGR Vacuum control regualier, DMCP, canister, all of these parts are new and was bought from the ford place. Have taken the egr value, and egr value bracket off to see if carbon blockage was present, but it was clean. It was clean in the motor also. Have blown air through the metal tube that connects to the egr value and it come out the tail pipe very good, so no blockage their. Have cleaned throtle body and injectors. Have tested fuel injector with tester and it works correctly. Motor holder pressure. Have correct fuel pressure.
Do not have any vacuum leaks, it holds vacuum correctly. Crankshaft sensor is fine. Went throw 4 cans of break parts cleaner, spraying on intake while motor was running, motor did not idle up or change. I have done all this and it still shows code P0301, and it still skips. Here's the catch, if you unplug the vaccum off the egr the misfire goes away, or unplug the EGR vacuum control regulator it goes away, or if you unplug the DMCP sensor it goes away, it does not matter witch one you unplug, the misfire goes away.
I have had several different test done the the truck, but all the test only show that one code P0301, they do not show any other codes, or problem's with my truck.
Ford F-150 - 1997-2003 :: 1998 4.6L - Misfire On Cylinder 6 / Code P0171 And P0174
P0306 (ok #6 missfire) with P0171 & P0174 --- Do I chase electrical or fuel or both. Afraid to assume anything but probably would normally address the misfire electrical first.... Don't want to go down that 'primrose path' if others have been there first!
View 4 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 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 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 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.
View 2 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???
Ford 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 Super Duty (1999-2016) :: 2004 V10 - Misfire On Cylinder 2 - No Compression
I bought this 2004 V10 Ford truck new.. It was at that time top of the line Ranch King with all the bells and whistles.. I have been trying for some time to figure out the miss I have. I was told yesterday that.. Misfire 2nd cylinder passenger side no compression.. They said I need to have a new Engine installed.. They would look for a rebuilt and would cost with installation around 5 grand.. I then took it to another garage and was told that's not it, but will check it out later in the week.. What I should look for.. No one seems to b able to figure it out.. I cannot afford a new truck at this time and 5 grand for this one to fix is not a reality..
View 8 RepliesFord 6.0L Power Stroke Diesel :: 2006 - No Start Intermittently / Slightly Low Compression On One Cylinder
Started having some crank no starts intermittently. Scanned and found codes for cam sensor. so I was in a pinch and a hurry on a sunday so I picked up a BWD brand cam sensor from parts store and installed. I have not seen this issue since but started noticing other thing going on. I noticed a few weeks ago my truck was starting a little strange. as it would spin over before firing off, it didn't sound right. I couldn't pinpoint if it was due to slightly low compression on one cylinder or one cylinder had a little fuel or oil in it and that one cylinder was actually firing while cranking over.
I also was noticing a little longer crank times than normal. didn't matter if engine was cold or hot. sometimes would fire up quick and sometimes it took a few seconds. most of the time I couldn't catch it on my scanegauge if the ICP was low due to the lag on the scangauge.
Well one day on my way home from work (50 miles one way) I stopped about half way to fuel up. after filling up and attempted to restart the truck it really acted like it didn't want to start but did after cranking for about at least 10 seconds and started rough. and of corse my scangauge decied to hate me this day because it would show any data until I unplugged it and plugged it back in. so started home. felt like it had a very very light miss on the way home. when I slowed down to turn onto my road the truck died. took forever to get it to start back up. this time the scangauge was reading and I could see ICP was between 300-400 and IPR was 85%. so low pressure and not reaching the 600 needed to fire. once it started I limped it home. scaned it with my Auto Enginuity and it didn't show any codes.
So that much I can see I have a leak on the HPO system. but I done a lot of work to the truck about 2-3 years ago. roughly 80k-100k miles since the work. what I done included...
OEM oil cooler
OEM (updated)dummy plugs, standpipes & STC fitting
OEM head gaskets and ARP studs
BPD EGR cooler (I should have deleted)
ALL other engine gaskets(Bed plate, oilpan, front&rear cover, ect.)
OEM glow plugs and harness
OEM blue spring upgrade
Cleaned turbo veins
2 OEM REMAN injectors. (cant remember which two) had contribution codes one on each side.
This is all I can remember right now. Now have yall seen the updated dummy plugs and standpipes leak? I have not pulled valve covers to air test the HPO system yet.(don't have my air compressor at my new house yet). Here is what I have done so far:
Fully charged batteries.
I did do a bubble test. pulled upper fuel filter cover off and removed filter topped the bowl off and turned engine over using the wire by the passenger side battery. some bubbles but not a bubble bath.
Checked fuel pressure (not running) its 60psi. did not start truck because I need a different fitting so I can run the truck and check pressure while running.
while doing the bubble test I could hear that one cylinder is low on compression. but I do not have any misfire or contribution codes.
when I ran contribution test on AE its not showing any particular cylinder lower than the rest. but the line is not very solid at all.
Here is what I plan to do.
Compression test on each cylinder.
Looking at the Harbor freight kit. Looks like it has fittings for glow plug and injector holes.
If I can do compression test on both glow plug and injector holes this should show weather my injector orings are the cause of the low compression.
Then I have to airtest the HPO system and find the leak.
Am I on the right track? what else should I check? Guess I should add that the truck currently has 297K miles.
Golf 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 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 RepliesEscort :: 97 2.0 SOHC Lost Compression On Cylinder 4 / Car Started Throwing PO304
Car started throwing PO304 and checked coil, plugs, wires and injectors before finally checking compression. Checked #4 and it was 70. Checked #3 and it was 150 something. Got mad and quit
3 weeks ago the CEL started coming on only when i was low in a gear. Like rolling to a stop sign and taking off in 2nd instead of 1st. Dogging the car to avoid downshifting i guess i would say. Car would jerk like crazy and throw a code but would drive out of the jerking and run fine.
There are no loud noises coming from the valves. Engine runs a lil rough at idle but you would not notice it after you get going. Spark plug #4 had some oil on the threads, others did not. No antifreeze in oil, looks good. Throws PO304 constantly now..
Buddy came over and said he would first check the timing belt to see if it had slipped before digging into the head. To tell the truth, i probably will not be digging into the head anyway's. I probably could not find the problem anyways.
Just wondering what could be some realistic explanations for losing most compression on one cylinder. Could the valve seat be getting ready to go or is that a all or none type of deal?
This is a 97 wagon with 314,000 miles. I am getting 37 MPG and it drives straight as an arrow. Just replaced all tie rods and brakes and had her front end aligned and this is how she treats me. Would like to save this car as i really like it for my 700 miles a week commute to work. Judging the price of used cars nowdays, i have thought about replacing the engine with a used one if it comes to that but we will have to see.
Subaru - 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 RepliesFord F-150 - 1997-2003 :: Misfiring Cylinder 3 And 8
Trucks throwing codes for cylinder 3 and 8 misfire. I pulled the plugs and both were covered in oil and cylinder 8s electrode was literally gone. so I replaced the plugs and within 5 miles it was missing again. so I replaced all plugs, all wires and coil packs. cylinder 8 plug had fouled out. Its a 4.6l 99. I have a mild exhaust leak where the manifold connects to the downpipe. but not bad enough I feel it should matter. it runs rough until about 3k rpm and then it kinda straightens out.
View 14 Replies