Question about 1995 Pontiac Bonneville

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Engine hesitates and starts popping when on a hill

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Verify the fuel pressure is ok and the fuel filter is not plugging up, it should be changed at 30,000 miles

Posted on Nov 27, 2008

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Why is my jeep hesitating, going up a hill or when flooring it to pass?


nice facts, all, but no engine size options stated.
after all it's an ENGINE question.
you dont know whats there, and doing DIY> really?

one fact missing, and is key
does WOT power CATCH up
that is you move right foot fast and it bogs, we get that but what happens after the bog> ? more bog or it catches up.
if it dont catch up;, on hills, maybe fuel pressure low.
see?
at WOT there is no 02 sensors. nor TPS (enrich)
at WOT only you , then engine sucking air like mad the MAF at max voltage and if fuel pressure is low the car has endless bog.
see?

wot, = wide open throttle, use a hill to test, flat is useless .
max fuel is at max HP (max torque + max RPM both same time)

i own an 08 wrangler, 3.8L stick.
i just sold my 02,. with 2.4L I4, it was a bogging engine day one out of factory its a gut less I4. (only tubo can fix it)
2.4 or 4.0 L.
ive own all of them 4 and 6cyl.

Jul 19, 2014 | 2003 Jeep Wrangler

1 Answer

Hesitating when going up hill


if your engine idles in neutral, when was yourgearbox serviced? Automatic gearbox vacuum hose split? Check allrubber hoses going to transmission gearbox, squeeze them between thumb and forefinger, get a service

Dec 20, 2012 | 1995 Ford Bronco

1 Answer

1986 Cadillac loses power going up hills. Check engine light comes on. Also pedal hesitation when trying to excellerate up hills


have you looked up the codes? sounds like a clogged filter or bad fuel pump. Either way, have the check engine light looked at.

Nov 12, 2012 | Cars & Trucks

3 Answers

2004 Kia Rio - sputters and hesitates when going up hills. Automatic transmission but I have to shift into low gear to start up a hill. Once I shift into second gear, the engine hesitates and begins...


IT COULD BE DIRTY CLOGGED FUEL INJECTORS OR BAD SPARK PLUGS + WIRES STOPPED UP AIR FILTER. BUT HAVE CAR SCANNED IT COULD BE MASS AIR FLOW SENSOR OR VOLUME AIR FLOW SENSOR.COULD BE MANY THINGS.

May 12, 2010 | 2004 Kia Rio

1 Answer

In the morning the engine hesitate and water leaks from tailpipe


You may have a blown head gasket, do a compression test.

Apr 11, 2010 | 1993 Toyota Camry V6

1 Answer

My 2005 Pontiac Motnana pulls back seems to hesitate when going up hill or I stop on hill. I beive it is the transmission, it does not do it all the time it seems as it does it 2 to 3 times then stops and...


the problem could be related to the tune up of the engine.. when the vehicle is traveling uphill there is more load on the engine, so if the engine spark plugs arent up to par they will missfire causing the hesitation your feeling .. damp conditions could also contribute the the misfire condition .. i recommend having the tune up parts checked and replaced as necessary.

Jul 27, 2009 | Pontiac Montana Cars & Trucks

2 Answers

Hesitation , skipping,engine cuts out when accelerating


Bad coil they breakdown when the engine get hot. There is 3 coils total when it starts missing start pulling plu wires until you find the one that is not firing

Feb 28, 2009 | 1993 Chevrolet Lumina

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