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08-22-2009, 06:24 AM | #1 | |
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Hesitation on acceleration - gears slipping?
Hey all.
Here's a question for anyone with prior knowledge of something I'm experiencing on my '99 2.0 (automatic w O/D) ZX2: When pulling away from a standstill the car seems to hesitate briefly, almost as if it's choking, then pulls away. I find it usually happens when the car's warm, and happens less in the winter when the outside temp is cold. The sensation it gives is what I'd expect if the transmission was slipping out of and then back into gear. There is a small 'jerking'. With this description can anyone share some wisdom on what I might be experiencing? Many thanks!
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- - - - - - - - - - - - - - riproaringca@gmail.com Peterborough, Ontario 1995 Escort LX 3DR - 1.9L, 4cyl. w/ OD 1997 Sable GS Wagon - 3.0L, 6cyl. w/OD 1997 Expedition XLT - 5.4L, 8cyl. 4x4 w/OD 1999 Escort ZX2 Coupe - 2.0L 4cyl. w/OD 1999 Taurus SHO - 3.4L 8cyl. w/OD 2002 F150 4x2 SuperCab XLT - 4.6L 8cyl w/OD |
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08-22-2009, 12:01 PM | #2 | |
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Re: Hesitation on acceleration - gears slipping?
I just know you've done this, but have you checked the fluid level in the transmission? How many miles (kilometers) are on it? The PCV valve may be worn or an engine mount or tranny mount may be loose. The CV joints could be worn. Is it making a clicking noise upon turns?Does it do it in all gears? Does it do it according to engine speed or at any speed but just when it shifts gears? When you first put it into Drive does the tranny slip before it goes into gear? How's your fuel mileage? Hasn't it gone down recently? Is the speedometer OK? Have you good fuel pressure at the rail? Has the timing belt been changed recently?
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12-27-2009, 08:22 AM | #3 | |
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Re: Hesitation on acceleration - gears slipping?
Here's an update on the performance of my ZX2 since posting the original thread:
I plan to:
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- - - - - - - - - - - - - - riproaringca@gmail.com Peterborough, Ontario 1995 Escort LX 3DR - 1.9L, 4cyl. w/ OD 1997 Sable GS Wagon - 3.0L, 6cyl. w/OD 1997 Expedition XLT - 5.4L, 8cyl. 4x4 w/OD 1999 Escort ZX2 Coupe - 2.0L 4cyl. w/OD 1999 Taurus SHO - 3.4L 8cyl. w/OD 2002 F150 4x2 SuperCab XLT - 4.6L 8cyl w/OD |
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12-27-2009, 08:42 AM | #4 | |
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Re: Hesitation on acceleration - gears slipping?
Try cleaning the MAF/IACT sensors & connectors with CRC MAF sensor cleaner.
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01-08-2010, 08:45 PM | #5 | |
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Re: Hesitation on acceleration - gears slipping?
I'm thinking it could be something as simple as dirty fuel injectors. Could you run a bottle of fuel injector cleaner into the tank?
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01-08-2010, 09:05 PM | #6 | |
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Re: Hesitation on acceleration - gears slipping?
How about an ''Out of car injector service'', a diesel shop will micro bath, blow out, and do a flow test.
Also consider a good throttle body cleaning, because of all the EGR + PVC gunk. |
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08-30-2011, 10:14 AM | #7 | |
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Re: Hesitation on acceleration - gears slipping?
Change out the fuel filter, the most common problem to have.
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