Hesitation while accelerating
02-25-12, 02:21 AM
#1
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Thread Starter
Hesitation while accelerating
Recently its been doing it a lot....I think mainly when its cold but also does so when its warm.too. had the car checked out recently and they found nothing, any thoughts? It's a 97 with 147k miles and recently had a major service about 8 months ago.
02-25-12, 06:10 AM
#2
Lexus Champion
Cracks are relatively common as the rubber ages, and as you accelerate and the engine shifts positions, they open up and mess with your fuel/air ratio, causing the symptoms that you describe.
Although not conclusive, also try accelerating and driving in reverse and note if it hesitates in reverse as well.
Phil
Last edited by PFB; 02-25-12 at 08:08 AM.
02-25-12, 11:25 AM
#4
are you talking about when you hit gas it accelerates slowly at first but in about 5secs goes OD hard with a rapid push, even tho you didnt let the pedal go? my friend has such thing on his camry, cant fix it tho,if anybody knows whats up, let me knoe too
02-25-12, 03:11 PM
#5
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Thread Starter
One relatively easy thing to check is to remove the large rubber hose behind the air filter Box (your model year may have 2, I can't remember) and carefully look for cracks in that hose. If you bend it slightly than cracks will become obvious.
Cracks are relatively common as the rubber ages, and as you accelerate and the engine shifts positions, they open up and mess with your fuel/air ratio, causing the symptoms that you describe.
Although not conclusive, also try accelerating and driving in reverse and note if it hesitates in reverse as well.
Phil
Cracks are relatively common as the rubber ages, and as you accelerate and the engine shifts positions, they open up and mess with your fuel/air ratio, causing the symptoms that you describe.
Although not conclusive, also try accelerating and driving in reverse and note if it hesitates in reverse as well.
Phil
i'm steady on the gas but it just feels like a manu, you can actually see the rpm needle jumping with it. happens under 2500-2000 rpm as well at low speeds. i'd say under 20mph from a dead stop.. after that it's fine
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03-01-12, 12:44 AM
#8
Advanced
Thread Starter
One relatively easy thing to check is to remove the large rubber hose behind the air filter Box (your model year may have 2, I can't remember) and carefully look for cracks in that hose. If you bend it slightly than cracks will become obvious.
Cracks are relatively common as the rubber ages, and as you accelerate and the engine shifts positions, they open up and mess with your fuel/air ratio, causing the symptoms that you describe.
Although not conclusive, also try accelerating and driving in reverse and note if it hesitates in reverse as well.
Phil
Cracks are relatively common as the rubber ages, and as you accelerate and the engine shifts positions, they open up and mess with your fuel/air ratio, causing the symptoms that you describe.
Although not conclusive, also try accelerating and driving in reverse and note if it hesitates in reverse as well.
Phil
03-01-12, 05:39 AM
#9
Lexus Champion
If you don't have any check engine lights, than the next thing I would check/change would be the fuel filters. Both the main fuel filter AND the one in the back.
Do a search on fuel filters, you will find additional info. There have been several posts on this topic.
If you do have a check engine light, than what is it?
Phil
Do a search on fuel filters, you will find additional info. There have been several posts on this topic.
If you do have a check engine light, than what is it?
Phil
Last edited by PFB; 03-01-12 at 05:46 AM.
03-01-12, 09:43 AM
#10
Advanced
Thread Starter
If you don't have any check engine lights, than the next thing I would check/change would be the fuel filters. Both the main fuel filter AND the one in the back.
Do a search on fuel filters, you will find additional info. There have been several posts on this topic.
If you do have a check engine light, than what is it?
Phil
Do a search on fuel filters, you will find additional info. There have been several posts on this topic.
If you do have a check engine light, than what is it?
Phil
03-05-12, 02:00 PM
#15
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Thread Starter