Dodge Viper Problem (Help Please) Knocking BAD!!!!

[Black1sb3tt3r]

So washed the car off because of bird crap, went to turn the car on and barely wanted to turn on.. drove for a mile or two, car completely died.. jumped the battery now I have a really bad knock sounds like a helicopter please help...







https://www.youtube.com/watch?v=5hgb3KJI84Q

[Vprbite]

If you think it is related to the water, did you perhaps wet the plug wires and aren't getting good spark? I wash mine with lots of soap and water and have driven it in the rain, they even test them in torrential downpours. Unless you shoved the hose up the naca duct I don't think you would get hydro lock issues (minor ones that could unseat a ring) but I suppose it's possible.

My first thought is a bad spark somewhere. I am no guru though. Perhaps ask in the tech section. Those guys have seen every possible issue on a viper.

Good luck.

[Viper vince]

Check the crankshaft bolt on the dampener

[Viper vince]

Send the video to Arrow racing in Michigan .

[Black1sb3tt3r]

went to web site didnt see how to upload video for them to see

[St.Char]

What year is your car?

[ACtechOPS]

Although it sounds like a mechanical knock, only thing I can think of that comes close is putting regular gas in. Done it twice by accident, and the severity of the symptoms varies with the concentration. Very hard to start, would not idle and knocked like someone banging a hammer on the block. Not something you want to do. Hope it works out cheaply!

[Vprbite]

I ran 90 in my 02 once. (Only mods were high flows and corsa catback. No tune or anything) because I didn't have a choice and it ran just fine. Do you think he ran a full tank of 87?

[ACtechOPS]

I have also run 90 when there was no choice, and it was fine. Regular in Canada is 87, and it is brutal. Our mid grade is 89 and majority of premium is 91. If you hunt around you can find 93, but not many stations carry it. Apparently, when it comes to gas we suck. What if his ethanol % was too high?

[shnickerlaus]

You really do get screwed on the petrol other there 95 is our low end 97-99 premium, I'll only use the power stuff to fill fortunately plenty of shell stations around me. Bad gas could be the problem for you, but I would check the spark too as that is a likely candidate.

[Vprbite]

I have also run 90 when there was no choice, and it was fine. Regular in Canada is 87, and it is brutal. Our mid grade is 89 and majority of premium is 91. If you hunt around you can find 93, but not many stations carry it. Apparently, when it comes to gas we suck. What if his ethanol % was too high?

97/89/91 here. Rarely if ever see 93. Can't tell you when I have besides stations right next to tracks that also have race gas.

[Black1sb3tt3r]

What year is your car?

2004 also always put 93 in the tank maybe the idiot could have put something else because. I dont get out looking i just tell them fill it up with 93 cash, here in jersey youre not allowed to pump your own gas.

[bluesrt]

that's not gas folks, does the engine run smooth? or does it misfire?

[TA Two Oh]

You really do get screwed on the petrol other there 95 is our low end 97-99 premium, I'll only use the power stuff to fill fortunately plenty of shell stations around me. Bad gas could be the problem for you, but I would check the spark too as that is a likely candidate.

We use a different method of listing octane than in the UK. I believe our numbers are the Research Octane Number (RON) plus the Motor Octane Number (MON) divided by two. Your pumps likely post the RON. Since RON is typically 8-12 points higher than MON, in the UK the identical gasoline will have a rating 4-6 points higher than here.

[Viper Specialty]

OK, it does sound a bit like a lower end knock, but what is your oil pressure doing right now? Is it lower than normal? Any check engine lights?

Given the other issues and the way it occurred, it is also quite possible it is a dead cylinder. If the car responded to a little water the way you say, you likely have some wiring issues that need to be addressed. One of the cylinders may not be firing.

Either way, don't pointlessly run the car right now.

[bluesrt]

^^^^^^^^^^^^^^

[JoeTSI]

Start with the easy stuff first. You may very well have a cylinder not firing as stated above. Pull each plug to verify spark, check/replace wires, verify each cylinder is receiving fuel. Given you sprayed the car with water, you may have a loose connector to if you have a compressor hit each with a blast of air and reseat after verifying spark. You can also drain oil and open the oil filter to see if metal in the oil or filter.

[AZTVR]

OP: People seem to be assuming that you sprayed the engine with water; but, I didn't hear that specifically. Was the engine sprayed down? If not, I think external car washing is probably not relevant to a factor here.

[JoeTSI]

Except for the fact he stated he sprayed bird droppings off and then the problem arose.

[daveg]

Hard to tell from the Video. Is it a random Knock or is it constant when giving it gas. Sounds like from the top end? Valve Train?
As Bluesrt asks, is the car misfiring?

[AZTVR]

Except for the fact he stated he sprayed bird droppings off and then the problem arose.
Having never seen bird droppings on an engine, I wasn't too sure that he was talking about spraying the engine. Hence my question.

[JoeTSI]

Good point. Just wondering if the bird droppings were on the hood vents so he sprayed the ever living poo out of it. Lots of questions, but it seems his problem arose after the spray down, whether it be the car or god forbid, the engine.

[WestminsterSlim]

The part that catches my attention in the video is it drove to the store fine, was left unattended, then it acted up on the way home. As sad as it is, people are petty, and I wouldn't rule out some jack ass having messed with it. Good luck man, hope it turns out alright. Certainly doesn't sound good.

[gfviperman]

Plug Wires ....

[St.Char]

2004 also always put 93 in the tank maybe the idiot could have put something else because. I dont get out looking i just tell them fill it up with 93 cash, here in jersey youre not allowed to pump your own gas.

'04's had an issue with the crankshaft bolt. It sounded like something was loose and rattling around, it's easy to check it with your hand and see if it seems loose.

[Black1sb3tt3r]

OK, it does sound a bit like a lower end knock, but what is your oil pressure doing right now? Is it lower than normal? Any check engine lights?

Given the other issues and the way it occurred, it is also quite possible it is a dead cylinder. If the car responded to a little water the way you say, you likely have some wiring issues that need to be addressed. One of the cylinders may not be firing.

Either way, don't pointlessly run the car right now.

oil seem fine right next to 50 im guessing in the 40 range im gonna try the pull each plus thing and see if that helps me understand whats wrong.

[Black1sb3tt3r]

Hard to tell from the Video. Is it a random Knock or is it constant when giving it gas. Sounds like from the top end? Valve Train?
As Bluesrt asks, is the car misfiring?

nope no misfiring starts just fine, Only really hear this knocking sound when you're on the gas, it seem to be going away for some reason not complete gone but not as loud as it was before for some reason.

[Black1sb3tt3r]

Having never seen bird droppings on an engine, I wasn't too sure that he was talking about spraying the engine. Hence my question.

lol im sorry dude yes doodoo was just on the hood not in engine bay. I only washed the hood im pretty sure this is not water damage.

[Black1sb3tt3r]

OK, it does sound a bit like a lower end knock, but what is your oil pressure doing right now? Is it lower than normal? Any check engine lights?

Given the other issues and the way it occurred, it is also quite possible it is a dead cylinder. If the car responded to a little water the way you say, you likely have some wiring issues that need to be addressed. One of the cylinders may not be firing.

Either way, don't pointlessly run the car right now.

no check engine lights cars sounds fine at idle, only hear knocking when gas pedal is pressed. car starts pretty fine knocking is less audible aat idle now for some reason. i also have a automatic hooked up to car if the car threw a code it would pop up on my phone.

[viper04blk]

broken spark plug wire?

[Viper vince]

'04's had an issue with the crankshaft bolt. It sounded like something was loose and rattling around, it's easy to check it with your hand and see if it seems loose.

I remember reading that and you can damage your crankshaft if you don't fix it .

[viper04blk]

This is a long shot....

but i once heard some terrible sounds and I had no engine light. I took me a couple of hours to source it, but a bolt was loose on the corner of my belly pan (closest to the motor in the front-driver side). The vibration of the motor driving (woodhouse mounts) made it rattle LOUD. and of course, did not rattle while idling.

Could be worth checking your belly pan bolts.

[Viper Specialty]

If this is not easily diagnosed, please do yourself a favor and have a professional look it over. You are potentially costing yourself THOUSANDS of dollars extra by trying to troubleshoot this yourself, and causing additional damage in the process. This is not something for a forum to diagnose in general, but especially not at this point.

[Black1sb3tt3r]

If this is not easily diagnosed, please do yourself a favor and have a professional look it over. You are potentially costing yourself THOUSANDS of dollars extra by trying to troubleshoot this yourself, and causing additional damage in the process. This is not something for a forum to diagnose in general, but especially not at this point.

car is going to the hospital tomorrow lol im not touching it...

[viper04blk]

update?

[Sammy0009]

car is going to the hospital tomorrow lol im not touching it...


I hope hope this works out ok man, there is nothing worse than not knowing...

[HOLLYWOOD]

oil seem fine right next to 50 im guessing in the 40 range im gonna try the pull each plus thing and see if that helps me understand whats wrong.

I don't know if you did this but pull the dipstick? ..Low oil, hot weather = trouble. I sure wouldn't be firing it up. Flat deck into dealer.

[Jknappster]

Any update on this?

[Whitemamba]

Any update?

[Whitemamba]

Kind of sounds like a lifter or valve spring. Hope it all works out and they find out what it is.

[04 mamba]

Listen to Dan!!! That sounds to me to be bottom end. A dealer wouldn't be my first option to look at the car I would find a local viper/performance shop.

[Jknappster]

Ping......

[Fatboy 18]

It will probably be up on eBay soon, Clean runner, no issues :D

[Ninjazx71]

OP - any updates on this? Many people are curious what the ultimate issue ended up being...