Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [hesitation]

Referring to the engine when the accelerator is depressed and the engine does not seem to keep up (hesitates) with the driver's demands. Hesitation can be followed by stalling (engine quitting) or by surging (engine building power without notice).

31 questions
11
votes
2 answers

My Ignition Timing is Retarded, no seriously, it's really screwed up

I logged some test data to try and help me figure out why my 98 Mazda 626 GF 2L ATX has a rough idle and is suffering from hesitation. (Speed k/h),(TPS_v),(MAF g/sec),(RPM),(SparkAdvance),(EngineLoad),(ST_FuelTrim) There are a few things standing…
Robert S. Barnes
  • 15,780
  • 72
  • 157
  • 249
8
votes
1 answer

Engine hesitates and stalls when warm

My car is a Toyota Vitz 2007 and it has 80k KM on it. I usually drive short trips (about 5km) most of the time in a low traffic road. Car drives mostly fine in these short trips. But, if I drive for about 2 hours in a congested road with frequent…
Softcode
  • 1,013
  • 6
  • 16
  • 29
6
votes
2 answers

What kind of spark plug should I choose for LPG conversion?

I recently had an LPG system installed in my Golf MK4 and now the car has some hesitation when accelerating. The mechanic who installed the LPG System told me that I need to change my current (cheap, but brand new) spark plugs for some new ones…
edisonmecaj
  • 335
  • 1
  • 6
  • 15
6
votes
4 answers

Emissions Problem: Lambda AND CO Slightly High on my 98 Mazda 626

I just took my 98 Mazda 626 for it's inspection and they said the carbon monoxide is slightly high. The test is done using a tail pipe gas analyzer while holding the RPMs between 2500 - 2800 for thirty seconds. From what I've read, this is normally…
Robert S. Barnes
  • 15,780
  • 72
  • 157
  • 249
6
votes
4 answers

Hesitation or low power at slow acceleration

Subaru 2004 2l auto tip tronic. It seems to hesitate or have slow or lack of power when you accelerate slowly
Shane
  • 61
  • 1
  • 1
  • 2
5
votes
1 answer

Solstice - Can an exhaust leak cause (really bad) hesitation?

My Solstice says "hi everyone." Moving on. I've had some really rough starting over the past month or so. I hadn't had time to really look at it until a few days ago, when I noticed the downstream O2 sensor harness had been cut, I'm assuming by some…
3Dave
  • 3,159
  • 3
  • 25
  • 39
4
votes
1 answer

Engine's RPM drops right after start and after letting off the gas

Car in question is a 1993 Mazda Miata with 1.6 liter engine. Right after I start the engine the RPM drops below idle and the engine shakes a little bit but quickly recovers. After I give it a very small amount of throttle, barely a touch, the RPM…
method
  • 2,770
  • 12
  • 45
  • 61
4
votes
2 answers

Resolved: Idle RPMs fluctuate and engine hesitation

I am kind of stumped. I have a 1996 Toyota Rav4 that is acting weird. Let me start with the list of recent repairs. I gave it: a tune-up (new sparks, wires, distributor cap and rotor) changed the radiator cleaned the EGR valve, and recently…
emmanvazz
  • 135
  • 2
  • 2
  • 8
3
votes
1 answer

'99 Honda accord sputtering when accelerating and stalling at idle

My car is a '99 Honda Accord (V6). I have been putting mid-grade gas since I got it but I put in regular gas the other day and I believe that's when it started sputtering. It's getting worse now. The sputtering happens when I accelerate, and it…
Gyssel
  • 31
  • 2
2
votes
0 answers

Benz automatic transmission almost stalls engine when cold

i have a 1992 Mercedes W140 300se automatic transmission and v6 engine. My issue is that when i start the car in the morning and shift to drive and give it some gas, the engine shudders and feels like its about to stall. It doesnt stall, there is a…
Paolo Briones
  • 61
  • 4
2
votes
1 answer

Occasional hesitation on acceleration 2015 Subaru Forester

2015 Subaru Forester hesitates occasionally on acceleration usually at slow speeds. Some days drives perfectly then messes up the next day.
Rupert
  • 21
  • 1
  • 2
2
votes
0 answers

1999 ford f150 4x4 extended cab...bogged down moving rpms and misfiring

I have a 1999 ford f150 4x4 and i have been having issues with hesitation When i accelerate. I took it to have codes read and it said that 7 n 8 are misfiring and and something like FBR..FDR...something is working right. And one of my ignition coil…
Cathy
  • 21
  • 2
2
votes
1 answer

Detect engine stumble or hesitation

I want to know if I can detect my engine is having hesitation/stumble problem from an OBD. I mean not from any fault codes, but from the parameters obtained from the OBD. e.g. calculate the obtained torque/power and compare with the power/torque…
Soumya Sen
  • 1,521
  • 3
  • 24
  • 47
1
vote
1 answer

Stalling Mazda CX-5 Skyactiv-D

I recently imported a used 2016 Mazda CX-5 AWD Skyactiv-D which seems to have had a problem before it was sold. The car does not have any DTCs stored in the ECU nor does it have any pending codes. I noticed that it drives OK until you Rev it up,…
170730350
  • 111
  • 2
1
vote
4 answers

*New update please help* Stalling and hesitating in Kia Sorento after getting gas

I have a 2011 Sorento that has been a mystery. It started hesitating and sort of hiccuping seemingly randomly a few months ago. Fast forward and we have seen three mechanics and there are no codes and they say it looks great, even after stalling. …
Helloworld
  • 11
  • 1
  • 5
1
2 3