All Replacement brand items are backed by 1-year, unlimited-mileage warranty. Show full review Vehicle Overview Pontiac revamped its midsize front-wheel-drive Grand Prix sedan for 2004. We are here to help! Replacing just the torque converter is a short term fix at best so we do not recommand it. By the time the problem occurs you blame the cooler for causing the transmission to fail but it could have been a failing torque converter and large amount of fine metal debris flowing through the system that caused the cooler to fail. General Motors' OnStar communication system is standard, as is a tire pressure monitoring system. Installing an auxiliary cooler in-line with the radiator cooler is a great way to help drop the high temps down. We have no preferrence on using these and honestly have seen more of these to fail over the years than the traditional silver gears.
This is not ideal for fluid life or seal life. Promising strong passing performance, it accelerates from a standstill with vigor, and the V-8 emits a much throatier, fuller exhaust note than the discontinued supercharged V-6. First- it is the final drive gear ratio of the transmission and final section of geartrain to transmit power to the axles. Driving Impressions Even though the Grand Prix has many appealing features, it doesn't quite compare to European and most Asian models in terms of solidness. The 2nd clutch drum is also prone to wear and the steel plates could get momentarily stuck in the drum which would give a 2-1 downshift bump right at take-off. Side curtain airbags are optional. .
The debris is throughout the transmission and a complete rebuild with a few upgrades is the only way to fix this problem and keep it from coming back. Interior Each Grand Prix is spacious enough for five adults. Large corner-mounted taillights flank the rear spoiler. If you are reading this page you have likely already had at least one major complaint or failure and a rebuild while several of our customers have had multiple replacements, even under 100K miles. Dropping the lower pan for inspecition often shows heavy amounts of either a gray metal flake or dark colored debris. The Grand Prix enters the 2008 model year with few changes. The Grand Prix enters the 2008 model year with few changes.
The final drive differential in these transmissions serves two functions. Large corner-mounted taillights flank the rear spoiler. This page shares the common problems that these vehicles often experience from minor nuisances to complete failures. It will act as a constant abbrasive on the cooler passages and can eventually wear a hole through and cause an internal leak. The factory design didnt allow enough compensation for wear- so the result is normally poor shift feel and long or lazy shifts, especially the 1-2 shift which leads to eventual failure. Complete Loss of movement any range, Possible whine noise: Likely the most common problem that we see often with these models is complete loss of movement after driving and wont move in any shifter range. From the factory the rubber lip seals that are used on the inner and outer sections of the input cluch apply piston are a Short design seal.
Another problem we see is the channel plate casting can wear in the area the 4th steel plates engage and dig grooves into the metal so this could cause 4th clutch to stick on until jarred loose and essentially give you a 4-1 downshift, or even a 4-N-1 downshift if the input clutch is not holding due to the problems noted above so it can be a combination of things going on. We prefer to see the fluid temps around 180 on average. Replace clogged or dirty transmission filter to keep your engine healthy! If you remove the filter and cut it open you will find the debris trapped in there also. They extend into a twin-port grille and a two-tone lower fascia. Last year's supercharged V-6 engine is no longer offered. These are often problems that are intermittent and can be difficult to replicate during test drives.
It is very common to see the transmission fluid temps once fully warmed up to sit at 200-225 degrees F and can shoot up even higher in heavy traffic or long drives in hot summer weather. General Motors' OnStar communication system is standard, as is a tire pressure monitoring system. The fluid return drain hole for the final drive section drains straight to the lower pan near the magnet and end of the filter so it will be very easy to see the damage that ends up in the pan. The Grand Prix competes in the same segment as the Dodge Charger, Ford Taurus and Nissan Maxima. The Grand Prix competes in the same segment as the Dodge Charger, Ford Taurus and Nissan Maxima.
Engine Coolant inside the transmission: Not a problem we see often on these vehicles but one that needs to be made aware. You are holding up traffic with a car that wont go anywhere. Exterior The Grand Prix's smooth sides are said to be Coke-bottle shaped, a theme that harks back to the muscle-car era. The transmission repair service field has found that a Long style lip seal greatly helps against this problem and is what is included in aftermarket gasket and seal kits and is also what we use in our rebuilds. The most common cause of this problem is a worn out inner surface of the Input clutch piston. Exterior The Grand Prix's smooth sides are said to be Coke-bottle shaped, a theme that harks back to the muscle-car era.
General wear inside the transmission also causes apply pressure to drop with age so these two problems add up and this is one area that does not need to be short handed on pressure. Another scenario with this problem is the feeling that the vehicle is taking off in the wrong gear and very lazy until after a brief moment it will slam back into 1st. Headroom is ample in each seating position, but the optional power sunroof steals some space. Vehicle Overview Pontiac revamped its midsize front-wheel-drive Grand Prix sedan for 2004. Once the inner sealing area wears it can prevent the inner lip seal for the piston from sealing properly.
These reportedly have a special heat treating process, but again we don't have a preferrence and use them if they are in good condition but should be closely inspected for cracked or fractured teeth. AutoTrust Silver supplies a great selection of transmissions and shifters system components at reasonable prices! Pontiac's paddle shifters work well but may suffer a little delay. Another area of concern that causes this is a boost valve in the valve body which is also something we upgrade and address in our rebuilds. Purchase now and minimize repair costs! This is because the pump in the transmission is working harder and moving more fluid thus allowing the added fluid to overcome the leak which prevented the clutch from either initially applying or staying applied. Second- it serves as the differential by means of spider gears connecting the left and right side axle. There are no quick easy fixes for these problems as they are inherent with the factory design and the only way to address and prevent these problems is with a quality rebuild using several improved design parts that the aftermarket world has offered.
A shift kit does not make up for excessive clutch clearances but does speed up the time the clutch will apply. Long sliding shifts: This problem is one that most 4T65E transmissions experience sooner or later. If you have sales questions or need parts support please contact us at: Sales tripleedgeperformance. Under the Hood A 200-horsepower, 3. The 2nd clutch clearance from the factory is set very loose and as wear occurs this will grow and make the shift feel worse.