Hello, i was wondering if anyone could help me. My car is making a loud rumbleing noise when it is on. I was wondering if maybe i jumped my timing belt. Its really loud. I havnt taken the oil pan out too see if i have trashed anything, but i wasnt running it hard and it wasnt low on oil. Also my radiator fluid was about half empty for some reason. If i did jump the timing belt would it sound really f***ed up? I havnt checked my spark plugs but i doubt that would make it sound this ******. I was told by some one on this page it could be a cam sensor. But would that make my engine really louD?
Car Problems
- Thread starter Jesse
- Start date
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Mike Kopstain
New Member
Well if it is not your exhaust it is most likely bad timing or several arking spark plugs. Is there any oil in your spark plug wells? If this happenned all of the sudden I think you have a timing issue.
Mr Anonymous
Tire Wall
The low coolant combined with the symptoms you describe have me thinking head gasket. But, it could also be as simple as an exhaust leak combined with an unrelated coolant leak somewhere.
1st thing I'd recommend is change your oil & make sure there's no coolant in the oil. If it's clean, try running the engine and pinpointing the source of the noise and let us know what you find.
1st thing I'd recommend is change your oil & make sure there's no coolant in the oil. If it's clean, try running the engine and pinpointing the source of the noise and let us know what you find.
RStalveyARFF
too many shos
where is this rumbling coming from? If it's coming from the rear of the car it could be the fuel pump return line check valve, which will rumble pretty damn loud if in need of replacement.
Well it sounds like its comming from the engine. At first i thought it was comming from the exaust, but its deffinetly comming from the front. Almost sounds like its nocking. But im not a car expert. So bad spark plugs could make it really loud??
93MTXSHO
New Member
Alright, the spark plugs need a 5/8 spark plug socket and about 9" of extensions. The easiest way to get to the plugs in the back is to remove the intake manifold. That's what I did. You shouldn't need to replace the intake gaskets unless the black coating is peeling off. Since it takes so much effort to get to the plugs, I would suggest replacing the wires at the same time. Sometimes they can cause a misfire too.
93MTXSHO
New Member
About the knocking, does the noise increase with the RPMs? I have a friend with a Chevy Corsica that has a knocking rod. It sounds like a pretty strong clicking that gets faster with the RPMs. It's really hard to describe, you just kind of have to know what you're listening for. Another thing. Check your timing with a timing light. They are about 50 bucks at Sears for a pretty decent one.
93MTXSHO
New Member
What part of Ohio are you in? I'm just asking because I'm going to school in Cedarville (about 7 miles south of springfield.) My SHO has always had a tick, but it's a valve tick. it also improves as you increase the RPMs. If you have oil in your plug wells, opt for the Felpro gasket set. I don't know what the number is, but if you tell Autozone it's a 91 SHO I've heard they can find it. It's 73.99. BTW do you know if there's been a 60K done on your car?
93MTXSHO
New Member
One other thing. In my experience, a knocking rod only sounds worse and worse as the RPMs increase, so I'm thinking that may not be your problem. It would really help if we could hear it though.
93MTXSHO
New Member
Still another suggestion. Only use the Motorcraft plugs. The "SHO gods" say they are the one and only plug for the SHO. My SHO has the Autolites in it, and as soon as I can I'm switching back to the Motorcrafts. AGSP32PP. Autozone should also have them for 3.99
i see what looks to be a little bit of oil on the toppart of the spark plug, as soon as i took the spark plug wires off. I cant tell for sure. I cant find a damn socket to unscrew my plugs. I live close to marysville. And close to belfountan.
shojuan
New Member
Make sure to blow the oil out of the spark plug wells or use some tighly rolled blue shop towels to soak up the oil before you remove the plugs. Might use a little carb cleaner after the oil is mopped up to disolve some of the crud. Just make sure it's dry and clean in there before you remove the plugs.
As for the spark plug socket, go to NAPA and spend $10 for an EVERCRAFT TOOLS extended 5/8" spark plug socket part # 775-9052. The socket is a 3/8 drive, 4-1/2" long and retains the plug. They'll probably have to order it for you which will take a day or two. It's well worth the extra dollars over a standard length 5/8" plug socket plus extension combination. You won't be sorry.
Rick
As for the spark plug socket, go to NAPA and spend $10 for an EVERCRAFT TOOLS extended 5/8" spark plug socket part # 775-9052. The socket is a 3/8 drive, 4-1/2" long and retains the plug. They'll probably have to order it for you which will take a day or two. It's well worth the extra dollars over a standard length 5/8" plug socket plus extension combination. You won't be sorry.
Rick
93MTXSHO
New Member
Alright, I'm going to try to help you out. But I need a little information first. Like, what year and transmission would help a lot. If you crack the throttle wide open does the engine struggle or rev smoothly? Is your tach still operational? Have you tried running the engine codes? Is there an extreme amount of condensation running out of the mufflers on startup? Does the exhaust smell anything like coolant?
These are just a few questions for me to try and see what's going on. I know how hard it is to work on the SHO and what a PITA it is to try and figure out what's going on. If you see or hear anything you even remotely think might be useful please include it in your response. I'm sorry you are having problems and I hope you can figure out what's going on.
These are just a few questions for me to try and see what's going on. I know how hard it is to work on the SHO and what a PITA it is to try and figure out what's going on. If you see or hear anything you even remotely think might be useful please include it in your response. I'm sorry you are having problems and I hope you can figure out what's going on.
when it is running it is very loud, and is struggling to run. There is condinsation on the bottom the engine on the oil pan, hard 2 tell if its oil or grease mixed with water. I do not smell any cooling fluid in the exuast, but everyonce in a while i smell gas in the oil im pretty sure thats where the smell is going.
93MTXSHO
New Member
Okay, gas in the oil most likely means that it is running rich. Most probably due to misfiring or just running like crap in general. Since you say it is struggling to run, I am leaning towards misfiring or jumped timing belt. Even when my computer died it would still run, it just wouldn't take gas or trip the fan relay. Misfire can be fixed by replacing the ECT, Oxygen sensors, spark plugs and wires. It might be all or just one of the above. Have you tried running the KOEO codes? If it's really running like crap and it trips the Check Engine light, it should have codes stored in memory. Here's the link for the self test procedure. You can most likely just bend a paper clip and stick it in both connectors.
http://www.shotimes.com/php-bin/modules.php?op=modload&name=News&file=article&sid=83
I would suggest running the KOEO (Key On Engine Off), KOER (Key On Engine Running), and SEFI (Cylinder Balance) tests. The KOEO will show codes in memory, the KOER will show errors found during the test, and the SEFI will tell us which cylinder, if any is causing the majority of your problems.
I'm not entirely sure about the condensation on the oil pan, but I don't think it points directly to anything. Mine always has oil on it (both my mains leak) and the road dirt makes a grease like putty.
I know that oil in your spark plug wells is not good, when I got my SHO, it had probably an inch and a half of oil in each one. But it still ran like a champ and would always accelerate and take whatever beating I was willing to subject it to. If you haven't already, change your oil. It'll only cost you about 10 bucks or so. If there's even a hint of coolant in the oil it'll definitely tell us if you have a bad head gasket, but if you don't smell coolant in your exhaust you're probably okay.
Follow the link and run the codes. It should shed some light on something. Most importantly, don't get discouraged. I've worried about mine for a year and a half, constantly nitpicking about things that aren't even important. Just keep at it and hopefully, we'll be able to solve your problems with minimal cost and trouble. If you get any codes, have any trouble, or think of anything else, post it. I usually check the forum 5 or 6 times a day. Good luck.
http://www.shotimes.com/php-bin/modules.php?op=modload&name=News&file=article&sid=83
I would suggest running the KOEO (Key On Engine Off), KOER (Key On Engine Running), and SEFI (Cylinder Balance) tests. The KOEO will show codes in memory, the KOER will show errors found during the test, and the SEFI will tell us which cylinder, if any is causing the majority of your problems.
I'm not entirely sure about the condensation on the oil pan, but I don't think it points directly to anything. Mine always has oil on it (both my mains leak) and the road dirt makes a grease like putty.
I know that oil in your spark plug wells is not good, when I got my SHO, it had probably an inch and a half of oil in each one. But it still ran like a champ and would always accelerate and take whatever beating I was willing to subject it to. If you haven't already, change your oil. It'll only cost you about 10 bucks or so. If there's even a hint of coolant in the oil it'll definitely tell us if you have a bad head gasket, but if you don't smell coolant in your exhaust you're probably okay.
Follow the link and run the codes. It should shed some light on something. Most importantly, don't get discouraged. I've worried about mine for a year and a half, constantly nitpicking about things that aren't even important. Just keep at it and hopefully, we'll be able to solve your problems with minimal cost and trouble. If you get any codes, have any trouble, or think of anything else, post it. I usually check the forum 5 or 6 times a day. Good luck.
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