Question about 2000 Pontiac Sunfire

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Car is slow shifting into reverse.. it takes a second or two after i put it in reverse, and trans also does not like shifting itself into the last gear till it driven a couple miles

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  • Pontiac Master
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Have you ever changed the transmission fluid and filter?? If your car has more than 80,000 on it, it's due. DO NOT go to one of those Jiffy-Oil type places that just **** out the fluid. You need someone that actually drops the pan (that's where the filter is) changes the filter AND GASKET (very important). I might recommend an additive like SEAFOAM. I've had a few GM cars and this seemed to cure the problem for a while... Did it twice on an Olds 88 and it lasted 256,000 miles.

Posted on Feb 02, 2010

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89 sidekick auto trans slow to shift into reverse after sitting overnight all forward shifts are good


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How do you adjust the shift cable on a 1995 gmc jimmy, wont go into reverse or park.


On the 1995 Jimmy, the shift cable can come loose on the mount on the side of the transmission where the cable meets the trans. When it slips, the alignment goes off and causes the driver to not be able to put the trans into park. If you take a long stick you can push the shift arm on the trans to the park position and your trans will go into park.....what you (and I) really need to know is how to take the shift cable mount apart and reset it.

Aug 05, 2012 | GMC Jimmy Cars & Trucks

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Whenever I put the Audi A4 in reverse it shifts fine but when i put in in drive it shifts real hard and when I am slowing down at times it downshifts like something hit me.Where do I add trans fluid?


down the dipstick tube!!!(really)DO NOT OVERFILL...
Your audi is fitted with a fuzzy logic gearbox, it will change according to your driving style.TRY THIS,put into 1st and without touching gas pedal, let the car accelerate to top gear,stop Then using onle 1/3rd gas pedal do it again.then using 2/3rds do it again.then only using the minimum pedal req accelerate to max legal limit.(try not to use brake pedal,let the car slow down itself,until you have to)then drive as normal, it will feel like a different car.

Mar 22, 2010 | 2000 Audi A4

1 Answer

I have a 1997 chevy 1500. The Trans (4l60e) is bad i think


Before guessing at transmission problems, check the fluid level (car warmed up, engine running in Park on level ground) and have the PCM scanned for trouble codes FIRST.
Secondly, put a line pressure gauge (or visit a local trans shop) on the pressure test port and go for a drive to verify proper line pressure. Base pressure at idle in P,N,OD should be around 70psi and around 140psi in R. Max line pressure should be at least 190psi at WOT in 1st or 2nd, 225psi is optimum. If base pressure is low, trans or pump is worn out. If max pressure is low, check EPC solenoid. If reverse is slow to engage, and line pressure does not come up to at least 130psi in reverse, replace the boost valve with a Transgo 0.500" boost valve (easy fix in pan).
Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the trans may help (must remove valvebody), or adding a high-viscosity additive such as Lucas Transmission additive or other seal restorer product. May also have worn boost valve (can replace in the pan).
Soft shifting, gradual performance degradation: Poor line pressure rise due to leaking boost valve, clogged EPC filter screen, failing EPC solenoid, or worst case: leaky seals throughout. Transgo HD2-C kit fixes first two without removing trans. Seal restorer may fix last problem, but probably R&R. Also try a transmission flush with BG brand products (Firestone stocks it).
No movement in any gear: pump failure, or total loss of fluid. R&R, or refill pan and find the leak. If out of fluid, avoid running the engine until the trans is refilled to avoid pump damage. To check for pump failure, check fluid level with the engine off, then start the engine and recheck fluid level. If level does not go down when engine is running, the pump is broken.
1-2 or 2-3 shift is slow/soft above part throttle: Trans is on its way out. R&R
Good luck and start with checking your transmission fluid level. Thank you for using Fixya

Mar 16, 2010 | 1997 Chevrolet Suburban

1 Answer

My transmission is slipping oil when you floor it


Before guessing at transmission problems, check the fluid level (carwarmed up, engine running in Park on level ground) and have the PCMscanned for trouble codes FIRST.

Secondly, put a line pressure gauge,(or visit alocal trans shop) on the pressure test port and go for a drive toverify proper line pressure. Base pressure at idle in P,N,OD should bearound 70psi and around 140psi in R. Max line pressure should be atleast 190psi at WOT in 1st or 2nd, 225psi is optimum. If base pressureis low, trans or pump is worn out. If max pressure is low, check EPCsolenoid. If reverse is slow to engage, and line pressure does not comeup to at least 130psi in reverse, replace the boost valve with aTransgo 0.490" boost valve (easy fix in pan).

Slow, slipping or no reverse: “lo-reverse” clutches are wornout, fluid leak in the reverse apply circuit, or broken sunshell. It ispossible to remedy a fluid problem by removing the checkball from itscage in the case in the rear of the trans may help (must removevalvebody), or adding a high-viscosity additive such as LucasTransmission additive or other seal restorer product. May also haveworn boost valve (can replace in the pan).

Soft shifting, gradual performance degradation: Poor linepressure rise due to leaking boost valve, clogged EPC filter screen,failing EPC solenoid, or worst case: leaky seals throughout. TransgoHD2-C kit fixes first two without removing trans. Seal restorer may fixlast problem, but probably R&R. Also try a transmission flush withBG brand products (Firestone stocks it).

1-2 or 2-3 shift is slow/soft above part throttle: Trans is on its way out. R&R.

Good luck and hope this helps. keep me posted, be glad to help you get your transmission running 100% again soon and thank you for using Fixya.

The best up grade you can do for your transmission is to replace the servos with a Corvette Servo, there go for around $45.00 and can be replaced without removing the transmission pan and also replacing the Boost Valve with a 0.490 or 0.500 Boost Valve. The other inprovment that will help your transmission would be adding a B&M Shift-plus Electronic Shift Improvement kit, part # 70380 Cost around $45.00 if not less. http://www.bmracing.com/SPECIALS/ShiftPlus-electronic-Shift-Improver-for-GM

Feb 26, 2010 | 1997 Chevrolet Blazer

1 Answer

Shifts hard only some times when cold or hot from 3rd to over drive the truck has 130,000 miles and is a 2000 chevy silverado 2500 6.0L


1-2 shift is delayed and harsh, may not shift into OD: Check TPS for smooth and linear electrical response over the entire range of motion. If not, replace or EPC (Electronic Pressure Control) solenoid failed. Easy fix in pan. Fix as soon as possible or hard parts will eventually break. Start with the simple and check the transmission fluid level and condition.Secondly, put a line pressure gauge (or visit a local trans shop) on the pressure test port and go for a drive to verify proper line pressure. Base pressure at idle in P,N,OD should be around 70psi and around 140psi in R. Max line pressure should be at least 190psi at WOT in 1st or 2nd, 225psi is optimum. If base pressure is low, trans or pump is worn out. If max pressure is low, check EPC solenoid. If reverse is slow to engage, and line pressure does not come up to at least 130psi in reverse, replace the boost valve with a Transgo 0.500" boost valve (easy fix in pan).
No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD and locks the converter : ShiftA solenoid failed. Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.

Good luck and keep me posted.

Feb 17, 2010 | 2000 Chevrolet Silverado

1 Answer

I have a 2003 camry,4 cyl engine auto trans,143000 miles on it, just replaced the trans with used unit with 20,000 mile on it, car dose the same thing, when shifting from 2nd to 3rd it holds the shift high...


Usually burnt and discolored ATF mean pump or torque converter not doing there job or bands and clutches are worn. Shift solinoid or a pressure problem is the problem with 2nd and 3rd gear, Take it to a transmission shop and have them look it over but like I said earlierdiscolored ATF could mean a rebuild.

Jan 31, 2010 | 2003 Toyota Camry

1 Answer

Why does the transmission slip when it gets warm


Soft shifting, gradual performance degradation: Poor line pressure rise due to leaking boost valve, clogged EPC filter screen, failing EPC solenoid, or worst case: leaky seals throughout. Transgo HD2-C kit fixes first two without removing trans. Seal restorer may fix last problem, but probably R&R. Also try a transmission flush with BG brand products (Firestone stocks it).

Secondly, put a line pressure gauge ($55 shipped on Ebay, or visit a local trans shop) on the pressure test port and go for a drive to verify proper line pressure. Base pressure at idle in P,N,OD should be around 70psi and around 140psi in R. Max line pressure should be at least 190psi at WOT in 1st or 2nd, 225psi is optimum. If base pressure is low, trans or pump is worn out. If max pressure is low, check EPC solenoid. If reverse is slow to engage, and line pressure does not come up to at least 130psi in reverse, replace the boost valve with a Transgo 0.500" boost valve (easy fix in pan).

Good Luck and keep me posted.

Nov 25, 2009 | 2000 Isuzu Trooper

1 Answer

1994 Buck P/Ave Runs in reverse Not drive


If it was a modulator it would go into low but it would be screaming when it shifted into second and third. The modulator lets the trans shift without head jerking shifts and when unhooked the shift point is way up in the rpms before it shifts.Buicks are hard to beat when it comes to lasting. I do believe in my opinion i would replace the trans. Hope i helped a little God Bless you Greg

Nov 25, 2008 | 1988 Oldsmobile Cutlass Ciera

1 Answer

94' jeep grand cherokee trans. delays in reverse


Hi ray_c_brown, This pause is determined by a time lag test, and you can check this yourself with a stop watch.Engagement time in "D" range should be a maximum of 1.2 seconds and the engagement time for reverse should be a maximum of 1.5 seconds. So with your vehicle warmed up and assuming curb idle speed is correct set the park brake,make sure ac is off (air cond) shift transfer case to 2H or if it is a NP249 transfer case leave in 4H,put your vehicle into neutral and set your stop watch shift to Drive and record time repeat this a couple of times and do the same with reverse,as you said the delay is with reverse so if it takes longer than 1.5 seconds here are a few things it could be:shift cable adjustment,low line pressure,worn direct clutch, first/reverse brake worn or a worn or damaged overdrive clutch.Hope this helps you good luck :)

Nov 11, 2008 | 1994 Jeep Grand Cherokee

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