Question about 2000 Volkswagen Golf

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Rough idle Engine idle is rough. New plugs, new timing belt, water pump, serpentine belt.

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Check O2 sensor and MAF sensor.

The best thing to do is scanning car computer with OBD II reader, that will tell you what is wrong.


Posted on May 22, 2009


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I have a 1990 Mazda MPV that had a broken timing belt (3.0 ltr.V6) I replaced the tb,water pump,new spark plugs,wires but now it idles really rough and has no power upon acceleration.

You've either not lined up the timing belt properly, or it's an interference engine, which means the valves crashed into the pistons when the belt broke. Check your tb alignment properly, and hope that's all it is.

Apr 12, 2017 | Mazda Cars & Trucks

1 Answer

Engine doesn't idle - 1996 dodge Dakota sport

I would give the throttle body a goof clean with carb cleaner making sure the butterfly flap gets a clean due to build up or carbon. If it's not closing properly it will idle rough and possibly cut off. Also might be worth checking the idle control valve.unplug it unbolt it take it off a spray the inside with carb cleaner let it dry and replace. Hope this helps

Sep 03, 2015 | Dodge Cars & Trucks

1 Answer

1998 Dodge 1500 5.9L, running rough, no power, does not do this all the time..

I had a similar problem on a 2004 Jeep Grand Cherokee V8 engine.
Nothing seemed out of the ordinary except that occasionally the engine would run rough. Another seemingly unrelated symptom was that when shifting out of Park the transmission would sometimes jolt.

Turns out that I had a bearing on the serpentine belt tensioner that was freezing up. My belt broke and while I was changing the belt the pully on the tensioner fell into my hand. The bearing had seized and the plastic hub had disintegrated. After getting the new tensioner and belt. I noticed that the rough engine and the hard shifting transmission problems have gone away.

Seems that the engine was having to work harder to overcome the bad bearing.

Another cause of rough engines comes from dirty fuel injectors. The best solution I have run across is Chevron's Techron fuel additive. I had a honda Prelude that had a rough running engine. The Honda technician advised me to start adding Techron when I fill up. Worked like a charm. After the second tank I had no more problems. I have tried other fuel additives over the years, but Techron seems to be the best.

Also be sure to change your fuel filter. A dirty fuel filter will cause a noticeable drop in power.

Mar 03, 2014 | 1998 Dodge Ram

1 Answer

Cutting out and missing at midrange 40 to 55 mpr

I had a problem similiar - if you vehicle has over 100,000 miles you might need a new timing chaing kit fitted into your vehicle. There are many symptoms associated with a rough idle and using some the over the counter fixes or mechanic in a bottle will appear to make the problem go away for a short time. For instance Sea Foam and Chevron Techron Plus are good solutions when used correctly but won't solve a timing issue. You might take your vehicle to a trusted mechanic to check. If you do need the timing chain replaced, I'd suggest you request the oil pump be replaced and have them install a timing kit, new serpentine belt idler assembly and serpentine belt. The reason is most shops have to go through all these parts to get to the oil pump. The job is about 14 hours for the complete job. It runs about 11 hours for just the timing kit change out. 3 hours and a new oil pump will help extend your vehicle. I am utilizing a Dual Overhead Cam, Duratec 24V, 3.0L while writing this. Estimates and price may very. Total cost when we looked into this was approx $2800, the other option was to trade/sell it. Hope this helps. MPK

I’m happy to help further over the phone at

Mar 16, 2013 | 2000 Mercury Sable

1 Answer

95 4runner 3.0 v6 rough idle

Dirty throttle body, IAC sensor.

Jun 12, 2017 | Cars & Trucks

2 Answers

Have a 1998 Ford Excort ZX2 2.0L My serpentine belt just recently shreaded because my mechanic put an a/c delete kit on it and did not have the delete kit pulley lined up correctly. The pieces wrapped...

According to the Gates Timing belt guide this is an interference engine. Have a compression test performed to see if any of the cylinders are down. It may have bent valves or other engine damage if the old belt skipped teeth. Otherwise the new belt may not have been lined up correctly. Take the car to a reputable mechanic and have the cam timing checked and also the compression test done

Sep 07, 2011 | Ford Escort Cars & Trucks

2 Answers

My 2000 Ford Focus is still with a rough idling

Here are the things I would check.
-timing belt/pulley alignment -plug wires -coil(s) -clean throttle body

Feb 23, 2010 | 2000 Ford Focus

1 Answer

Idles rough when at stop lights etc.

Depending on vehicle mileage, you are likely ready for a tuneup that would include new

1. Spark plugs
2. Spark plug wires
3. ignition cap/rotor, if used
4. new serpentine belt(s)
5. Fuel system cleaner such as Chevron Techron or Regane
6. New timing chain/belt if mileage warrants--check owner's manual

Barring serious mechanical issues, the above items should eliminate the idling problem OR make it much easier for a shop to trace the real problem using a OBDII Scan Tool.

Dec 31, 2009 | 1995 Mazda MX-6

1 Answer

Engine idles rough, misses at 2500-3000 rpm's

i would first check the timing and if that does not fit i would take the cover back off and look at the belt for a bad or missing tooth

Feb 14, 2009 | 1996 Toyota Camry

2 Answers

Engine runs rough at certain speeds 3.0 v6 flex-fuel 1999 ranger

Check and see if the EGR valve is leaking, to check this spray water on it at idle, if the water steams off the valve is leaking and is the source of your problem, also are you sure you hooked the new DPFE sensor up right? re-check it..

Nov 23, 2008 | 1999 Ford Ranger SuperCab

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