| Author | Message | ||||||
     Garrett (Rover7592) Senior Member Username: Rover7592 Post Number: 366 Registered: 03-2003 |
Driving down the road in my DI (only while accelerating) a loud ass popping noise comes from the driver side wheel area, may not be the wheel area but somewhere on the front drivers side. Anything to do with having a snorkel? The rover has lost some power, and after i've been driving for a while it doesn't do it. If i crank it up, take off and soon as i hit the pavement and try to catch up to moving speed, it will pop (usually more than once) and loses some power when it pops. My intake is a snorkel, and i have a flowmaster for an exhaust if that makes any difference. Could it have something to do with bad catylitic converters? i know it is not the speed sensor because i've already taken care of that issue. It's not a drastic loss of power, just a loud pop and it goes back to normal. When i have the speed sensor problem it'd lose power for a few seconds and then regain it's speed. The tachometer, as far as i know, doesn't change when it pops. Trying to avoid the dealership anyway possible. Any advice is appreciated. Welecome to email at rover7592@yahoo.com | ||||||
| Ryan Graham (Ryangraham) New Member Username: Ryangraham Post Number: 11 Registered: 01-2004 |
Check motor and trans mounts. Jack up front end and shake it down. Noises are hard to diagnose without being their. Sorry I can't be more helpful | ||||||
| Garrett (Rover7592) Senior Member Username: Rover7592 Post Number: 367 Registered: 03-2003 |
Ryan, Would it make a noise similar to like a backfire? | ||||||
| Randall Smith (Mr_smith) Member Username: Mr_smith Post Number: 200 Registered: 04-2003 |
Think the popping noise is in the exhaust system? Then your description sounds like the fuel isn't getting ignited in one or more of your cylinders when the engine is cold. When that fuel hits the exhaust it ignites in there and makes the noise. If you think that might be what's happening then it could be th result of overfueling or faulty ignition when cold. The fuel maps on these engines are really overfuel on cold startups. How cold is it where you live? I might try a fresh set of spark plugs if you think fuel is igniting in the exhaust. Randall | ||||||
| Garrett (Rover7592) Senior Member Username: Rover7592 Post Number: 368 Registered: 03-2003 |
Randall, What is the best spark plug for the money? Looking at bosch platinum +4 and a set of magnecore spark plug wires. It's about 15 degrees and we have several inches of snow on the ground right now, and fixing to get quite a bit more i believe.I don't think it is in the exhaust system, it does sound like it would be a bit more in the spark plug area. I did replace the plugs and wires a while back with champion spark plugs, which didn't turn out too good. I'll give that a try though. Anything else i might want to try before i spend some | ||||||
| Randall Smith (Mr_smith) Member Username: Mr_smith Post Number: 202 Registered: 04-2003 |
Hard to tell without being there. Magnecore yes. Multi electrode spark plug no. One of your spark plugs may be broken or loose in the threads. You might try disconnecting that snorkle from the intake for a few days. If your engine is flooding due to the ECU overfueling, then the snorkle may be acting as kind of a choke, making it worse. Try looking under the hood at night to see if there is any light show cause by ig wires. | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 376 Registered: 08-2002 |
I would check the Motor Mounts and see if there is an airleak before and after the MAF sensor. Is the snorkle a new addition? | ||||||
| Garrett (Rover7592) Senior Member Username: Rover7592 Post Number: 370 Registered: 03-2003 |
The snorkel has been on for 3-4 months. I had a spark plug wire problem earlier, and at night i could see a blue spark on it, and at idle i could hear the noise of it. My mechanic said that champion spark plugs aren't an ideal spark plug for a rover (not sure about that). I ordered plug wires which were 7mm and had those put on and they are all shot to shit already. I just took it out for a spin just now, and it seems to kind of stutter. The popping noise occurred 2-3 times, but the whole time i had the gas layed down it made several short stutters. With this lead to horsepower loss? I drove a friends 98 Disco I and it would blow mine off the road. I understand that a brush guard, winch, lift, and larger tires is going to take some away. But it's had the same amount of gettyup it had when i got it 2 years ago. My brothers 95 3.9 Disco will also roast it. | ||||||
| Randall Smith (Mr_smith) Member Username: Mr_smith Post Number: 203 Registered: 04-2003 |
For the plug wires I would stick with Lucas or Land Rover parts. Or if you want to upgrade the Magnecores are most likely better and much longer lasting. | ||||||
| Bill Mallin (Billmallin) Member Username: Billmallin Post Number: 97 Registered: 09-2003 |
Garrett: Here's a thread on the +4 plugs: ../2/41609.html"#333333"> | JVelocet (Vracer) Member Username: Vracer Post Number: 54 Registered: 06-2003 |
Bad cats could limit the horse power. Sometimes the catalyst gets contamianted and restricts the flow. This can happen without the cats rattling, but your engine will run hot, and you'll have a lot of pinging. This has happened to me with a Mustang GT, it got so bad it could not get up a hill. Also check to see that your getting enough vac advance. If your vac advance is broken your engine will be down on power (flat), your timing could be off also, check your distributor, cap and rotor. | ||||
| Garrett (Rover7592) Senior Member Username: Rover7592 Post Number: 371 Registered: 03-2003 |
Jvelocet, i do not have a distributor or distributor cap. I have a 98 Disco I and as far as i know they dont have that do they? But it has lost an enormous amount of power, and has a lot of noise coming from the front driver side. How do i check to see if my vac is broken? | ||||||
| JVelocet (Vracer) Member Username: Vracer Post Number: 55 Registered: 06-2003 |
D'oh! I'm sorry I did'nt pay attention to the year of your disco. No distributor no vac advance unit (cause that's where it is located). If you look at your brothers 95 you'll see a vac. tube running from the plenum to a unit on the base of the distributor. I don't know that much about the systems on the 98's. I can only guess that advance is controlled by a engine control unit. |
