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Navigator. Hesitation problems

Hesitates around 30-40mph

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1999 My Astro starts fine and idles fine; however from around 20 to 30 mph it hesitates. after 30-40 km/hr runs good


Skmet, Have you had a full tune up lately, including an injector cleaning. Problem could be a misfire, have a good Tech scan for codes, diagnose and estimate repair. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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http://www.automotiveforums.com/t546930-_96_4_3l_s_10_misfires_or_hesitates_at_constant_speed.html

Jul 27, 2016 | Cars & Trucks

1 Answer

Engine light on, flashing and hesitation when accelerating?


You will have to have your vehicle scanned to retrieve trouble codes. with the codes diagnostics of the problem can be more reliable. It could be something as simple as a vacuum line cracked or off. check links below for more info, press the helpful button.
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Jan 27, 2016 | Cars & Trucks

1 Answer

How do you read the flashing check engine light codes on a 93 chrysler town & country?


Turn key on and off twice without starting engine. count flashes, their will be slight hesitation, make one digit after hesitation make second digit.(flashes 5 times hesitates flashes three times hesitates your code is 53) if it countiues to flash, its making second two digit code.

Jan 27, 2010 | 2005 Chrysler Town & Country

1 Answer

1998 Jetta, runs great at parked. Stalls hesitates when driven


tps sensor causes a lot of hesitation problems also check air duct at the throttle body for vacuum leak .if its not tight have any cracks opens it will cause hesitation problems.

May 25, 2009 | 1998 Volkswagen Jetta

2 Answers

Perfect Idle, no Codes, but stepping on gas causes hesitation


i would try cleaning mass air sensor, its mounted in air duct between air filter and throttle body, they sell the cleaner at auto parts stores, also as stated bofore make sure the intake pipe clamps are tight and it's not cracked, if that doen't fix it i would investigate a fuel pressure problem either a weak pump or problem with regulator

May 24, 2009 | 1999 Subaru Forester

1 Answer

Hesitation under load around 5% throttle


check throttle position sensor!! at throttle plate on side of throttle body.

Apr 24, 2009 | 1996 Chevrolet Caprice Classic

1 Answer

Hesitation at 40mph and 50 mph.


A pop and hesitation is likely a backfire. The hesitation around 40 and 50 would be in keeping with that theory. There are several reasons you might be getting backfires and hesitation. If your ECM is adjusting the engine to run too rich this could happen. Misfiring might be occuring. Timing could be out. But one of the most likely is a restricted exhaust, likely due to a plugged, damaged or worn out catalytic converter. In some cases the converter may be bad enough to be giving you some performance problems, but not yet quite bad enough to signal an error. A vacuum test can help confirm whether this is exhaust related.

Feb 07, 2009 | 1997 Dodge Caravan

1 Answer

Engine hesitation, the trac off light comes and car hesitates.


ABS sensor on wheel hub bearing. I had the same problem cange it and problems went away

Jan 26, 2009 | 2001 Pontiac Grand Am SE

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